steam-roller (n.) Look up steam-roller at Dictionary.com
also steamroller, 1866, from steam (n.) + roller. As a verb, first recorded 1912 (steam-roll (v.) is from 1879). Related: Steam-rollered.
steam-whistle (n.) Look up steam-whistle at Dictionary.com
1840, from steam (n.) + whistle (n.).
steamboat (n.) Look up steamboat at Dictionary.com
1787, from steam + boat (n.).
steamer (n.) Look up steamer at Dictionary.com
1814 in the cookery sense, agent noun from steam (v.). From 1825 as "a vessel propelled by steam," hence steamer trunk (1885), one that carries the essentials for a voyage.
steampunk (n.) Look up steampunk at Dictionary.com
also steam-punk, by 1992, perhaps 1989, from steam (as in Age of Steam) + punk (n.), probably on model of cyberpunk (1986).
steamship (n.) Look up steamship at Dictionary.com
also steam-ship, 1819, from steam (n.) + ship (n.).
steamy (adj.) Look up steamy at Dictionary.com
1640s, "vaporous, misty, abounding in steam," from steam + -y (2); in the sense of "erotic, sexy," it is first recorded 1952. Related: Steamily; steaminess.
stearin (n.) Look up stearin at Dictionary.com
glycerine of stearic acid, white crystalline compound found in animal and vegetable fats (it was derived from mutton fat, among other things), 1817, from French stéarine, coined by French chemist Marie-Eugène Chevreul (1786-1889) from Greek stear (genitive steatos) "tallow, stiff fat, suet" (contrasted with pimele "soft fat, lard;" compare Latin sebum/adeps), possibly from PIE *stai- "stone," also "to thicken, stiffen" (see stone (n.)). Stearic (1831) is from French stéarique.
steatopygia (n.) Look up steatopygia at Dictionary.com
"abnormal accumulation of fat on the buttocks of certain races," 1822, Modern Latin, from steato- "fat, tallow," comb. form of Greek stear (genitive steatos) "solid fat, suet" (see stearin) + Greek pyge "rump, buttocks." Related: Steatopygous "having enormously fat buttocks" [Century Dictionary]; steatopygy.
steed (n.) Look up steed at Dictionary.com
Old English steda "stallion, stud horse," from Proto-Germanic *stodjon (source also of Old Norse stoð), from the same Germanic root as Old English stod (see stud (n.2)). In Middle English, "a great horse" (as distinguished from a palfrey), "a spirited war horse." Obsolete from 16c. except in poetic, rhetorical, or jocular language.
steel (n.) Look up steel at Dictionary.com
modified form of iron with a small portion of carbon, not found in nature but known in ancient times, Old English style "steel," from noun use of Proto-Germanic adjective *stakhlijan "made of steel" (cognates: Old Saxon stehli, Old Norse, Middle Low German stal, Danish staal, Swedish stål, Middle Dutch stael, Dutch staal, Old High German stahal, German Stahl), related to *stakhla "standing fast," from PIE *stek-lo-, from root *stak- "to stand, place, be firm" (see stay (n.1)). The notion is perhaps "that which stands firm." No corresponding word exists outside Germanic except those likely borrowed from Germanic languages.

As an adjective from c.1200 (Old English used stylen "*steel-en." Steel wool is attested from 1896. Steel drum is from 1952.
steel (v.) Look up steel at Dictionary.com
"make hard or strong like steel," 1580s, earliest use is figurative, from steel (n.). Old English lacked the verb but had styled "made of steel." Related: Steeled; steeling.
steely (adj.) Look up steely at Dictionary.com
1580s, "made of steel," from steel (n.) + -y (2). Figurative meaning "hard and cold as steel" is from c.1500. Related: Steeliness.
steenbok (n.) Look up steenbok at Dictionary.com
1775, from Afrikaans steenbok, from Middle Dutch steenboc "wild goat," literally "stone buck," cognate with Old English stanbucca "mountain goat," German Steinbock. See stone (n.) + buck (n.1).
steep (adj.) Look up steep at Dictionary.com
"having a sharp slope," Old English steap "high, lofty; deep; prominent, projecting," from Proto-Germanic *staupaz (cognates: Old Frisian stap "high, lofty," Middle High German *stouf), from PIE *steup-, extended form of root *(s)teu- (1) "to push, stick, knock, beat," with derivations referring to projecting objects (cognates: Greek typtein "to strike," typos "a blow, mold, die;" Sanskrit tup- "harm," tundate "pushes, stabs;" Gothic stautan "push;" Old Norse stuttr "short"). The sense of "precipitous" is from c.1200. The slang sense "at a high price" is a U.S. coinage first attested 1856. Related: Steeply; steepness. The noun meaning "steep place" is from 1550s.
steep (v.) Look up steep at Dictionary.com
"to soak in a liquid," early 14c., of uncertain origin, originally in reference to barley or malt, probably cognate with Old Norse steypa "to pour out, throw" (perhaps from an unrecorded Old English cognate), from Proto-Germanic *staupijanan. Related: Steeped; steeping.
steepen (v.) Look up steepen at Dictionary.com
1847, from steep (adj.) + -en (1). Related: Steepened; steepening.
steeple (n.) Look up steeple at Dictionary.com
Old English stepel (Mercian), stiepel (West Saxon) "high tower," related to steap "high, lofty," from Proto-Germanic *staupilaz (see steep (adj.)). Also the name of a lofty style of women's head-dress from the 14th century. Steeple-house (1640s) was the old Quaker way of referring to "a church edifice," to avoid in that sense using church, which had with them a more restricted meaning.
steeplechase (n.) Look up steeplechase at Dictionary.com
1793 (earlier steeplehunt, 1772), from steeple + chase (n.). Originally an open-country horse race with a visible church steeple as a goal.
steeplejack (n.) Look up steeplejack at Dictionary.com
"one who climbs steeples, chimneys, etc. to make repairs," 1881, from steeple + jack (n.) "fellow, man."
steepness (n.) Look up steepness at Dictionary.com
mid-15c., from steep (adj.) + -ness.
steer (v.) Look up steer at Dictionary.com
"guide the course of a vehicle," originally by a rudder or something like it, Old English steran (Mercian), stieran (West Saxon) "steer, guide, direct; govern, rule; restrain, correct, punish," from Proto-Germanic *steurjan (cognates: Old Norse styra, Old Frisian stiora, Dutch sturen, Old High German stiuren, German steuern "to steer," Gothic stiurjan "to establish, assert"), related to *steuro "a rudder, a steering," from PIE *steu-ro- (cognates: Greek stauros "stake, pole"), extended form of root *sta- "to stand" (see stet).

The notion is of a stiff, upright pillar or post used in steering, or else perhaps "establish," hence "direct, steer." Intransitive sense also was in Old English. To steer clear of in the figurative sense of "to avoid completely" is recorded from 1723. Related: Steered; steering.
steer (n.) Look up steer at Dictionary.com
"young ox," Old English steor "bullock," from Proto-Germanic *steuraz (cognates: Old Saxon stior, Old Norse stjorr, Swedish tjur, Danish tyr, Middle Dutch, Dutch, German stier, Gothic stiur "bull"), perhaps from PIE *steu-ro-, denoting "larger domestic animal" (see taurus). In U.S. of male beef cattle of any age.
steerable (adj.) Look up steerable at Dictionary.com
1836, originally of balloons, from steer (v.) + -able.
steerage (n.) Look up steerage at Dictionary.com
c.1400, "steering apparatus of a ship;" mid-15c., "action of steering," from steer (v.) + -age. Meaning "part of a ship in front of the chief cabin" is from 1610s; originally in the rear of the ship where the steering apparatus was, it retained the name after the introduction of the deck wheel in early 18c.; hence meaning "section of a ship with the cheapest accommodations," first recorded 1804, later found in the front part of a ship.
steering (n.) Look up steering at Dictionary.com
early 13c., verbal noun from steer (v.). Steering-wheel attested from 1750. Steering committee in the U.S. political sense is recorded from 1887.
stegosaurus (n.) Look up stegosaurus at Dictionary.com
type of plant-eating dinosaur, 1892, from Modern Latin order name Stegosauria (O.C. Marsh, 1877), from comb. form of Greek stegos "a roof" (related to stege "covering," stegein "to cover," from PIE root *(s)teg- (2) "to cover," especially "cover with a roof" (cognates: Sanskrit sthag- "cover, conceal, hide;" Latin tegere "to cover;" Lithuanian stegti "roof;" Old Norse þekja, Old English þeccan "thatch;" Dutch dekken, German decken "to cover, put under roof;" Irish tuigiur "cover," tech "house;" Welsh toi "thatch, roof," ty "house") + -saurus. The back-armor plates in the fossilized remains look like roof tiles.
stein (n.) Look up stein at Dictionary.com
earthenware mug, 1855, from German Stein, shortened form of Steinkrug "stone jug," from Stein "stone" (see stone (n.)) + Krug "jug, jar." Compare Old English stæne "pitcher, jug."
steinbock (n.) Look up steinbock at Dictionary.com
German; see steenbok.
Steinway (n.) Look up Steinway at Dictionary.com
make of pianos, from Henry Englehard Steinway (1797-1871), celebrated German piano-builder who founded the firm in New York in 1853.
stele (n.) Look up stele at Dictionary.com
"upright slab," usually inscribed, 1820, from Greek stele "standing block, slab," especially one bearing an inscription, such as a gravestone, from PIE root *stel- "to put, stand" (see stall (n.1)). Related: Stelar.
stell (v.) Look up stell at Dictionary.com
"to fix in position" (obsolete or dialectal), Old English stellan "to place, put, set," from West Germanic *stalljan (source also of German stellen; see stall (n.1)).
Stella Look up Stella at Dictionary.com
fem. proper name, from Latin stella "star" (see star (n.)).
stellar (adj.) Look up stellar at Dictionary.com
1650s, "pertaining to stars, star-like," from Late Latin stellaris "pertaining to a star, starry," from stella "star" (see star (n.)). Meaning "outstanding, leading" (1883) is from the theatrical sense of star.
stellate (adj.) Look up stellate at Dictionary.com
c.1500, "starry, star-spangled," from Latin stellatus "covered with stars," past participle of stellare "to set with stars," from stella (see star (n.)). Meaning "star-shaped" is recorded from 1660s.
stem (n.) Look up stem at Dictionary.com
Old English stemn, stefn "stem of a plant, trunk of a tree," also "either end-post of a ship," from Proto-Germanic *stamniz (cognates: Old Saxon stamm, Old Norse stafn "stem of a ship;" Danish stamme, Swedish stam "trunk of a tree;" Old High German stam, German Stamm), from suffixed form of PIE root *sta- "to stand" (see stet).

Meaning "support of a wineglass" is from 1835. Meaning "unchanging part of a word" is from 1830. Stems slang for "legs" is from 1860. The nautical sense is preserved in the phrase stem to stern "along the full length" (of a ship), attested from 1620s. Stem cell attested by 1885.
stem (v.1) Look up stem at Dictionary.com
"to hold back," early 14c., from a Scandinavian source, such as Old Norse stemma "to stop, dam up; be stopped, abate," from Proto-Germanic *stamjan (cognates: Swedish stämma, Old Saxon stemmian, Middle Dutch stemon, German stemmen "stop, resist, oppose"), from PIE root *stem- "to strike against something" (cognates: Lithuanian stumiu "thrust, push"). Not connected to stem (n.). Related: Stemmed; stemming. Phrase to stem the tide is literally "to hold back the tide," but often is confused with stem (v.2) "make headway against."

Verbal phrase stems from (1932, American English), perhaps is from stem (v.) in the sense "to rise, mount up, have origin in" (1570s), or is influenced by or translates German stammen aus, probably from a figurative sense represented by English stem (n.) in the sense of "stock of a family, line of descent" (c.1540; cognates: family tree, and German stammvater "tribal ancestor," literally "stem-father").
stem (v.2) Look up stem at Dictionary.com
"make headway by sailing, head in a certain course," late 14c., literally "to push the stem through," from stem (n.) in the "ship post" sense (here the post at the prow of the ship). Related: Stemmed; stemming.
stem-winder (n.) Look up stem-winder at Dictionary.com
"excellent thing" (especially a rousing speech), 1892, from stem-winding watches (1875), which were advanced and desirable when introduced. See stem (n.) + wind (v.1).
Sten (n.) Look up Sten at Dictionary.com
type of light, rapid-fire submachine gun, 1942, from initials of surnames of designers R.V. Shepherd and H.J. Turpin + En(field); compare Bren.
stench (n.) Look up stench at Dictionary.com
Old English stenc "a smell, odor, scent, fragrance" (either pleasant or unpleasant), from Proto-Germanic *stankwiz (cognates: Old Saxon stanc, Old High German stanch, German stank). Related to stincan "emit a smell" (see stink (v.)) as drench is to drink. It tended toward "bad smell" in Old English (as a verb, only with this sense), and the notion of "evil smell" has predominated since c.1200.
stencil (n.) Look up stencil at Dictionary.com
1707, not recorded again until 1848, probably from Middle English stencellen "decorate with bright colors," from Middle French estenceler "cover with sparkles or stars, powder with color," from estencele "spark, spangle" (Modern French étincelle), from Vulgar Latin *stincilla, metathesis of Latin scintilla "spark" (see scintilla).
stencil (v.) Look up stencil at Dictionary.com
"to produce a design with a stencil," 1861, from stencil (n.). Related: Stenciled; stenciling (1781 as a verbal noun).
steno- Look up steno- at Dictionary.com
before vowels sten-, word-forming element meaning "narrow," from comb. form of Greek stenos "narrow, strait," as a noun "straits of the sea, narrow strip of land," also metaphorically, "close, confined; scanty, petty," from PIE *sten- "narrow."
stenographer (n.) Look up stenographer at Dictionary.com
1796, agent noun formation from stenography.
stenography (n.) Look up stenography at Dictionary.com
"shorthand," c.1600, from steno- "narrow" + -graphy. Related: Stenographic; stenographical.
stenosis (n.) Look up stenosis at Dictionary.com
1846, medical Latin, from Greek stenosis "narrowing," from stenoun "to narrow," from stenos "narrow" (see steno-) + -osis.
stent (n.) Look up stent at Dictionary.com
"tube implanted temporarily," 1964, named for Charles T. Stent (1807-1885), English dentist.
stentorian (adj.) Look up stentorian at Dictionary.com
"of powerful voice," c.1600, from Stentor, legendary Greek herald in the Trojan War, whose voice (described in the "Iliad") was as loud as 50 men. His name is from Greek stenein "groan, moan," from PIE imitative root *(s)ten-, source of Old English þunor "thunder."
step (v.) Look up step at Dictionary.com
Old English steppan (Anglian), stæppan (West Saxon) "take a step," from West Germanic *stap- "tread" (cognates: Old Frisian stapa, Middle Dutch, Dutch stappen, Old High German stapfon, German stapfen "step"), from PIE root *stebh- "post, stem; to support, place firmly on" (see staff (n.); cognates: Old Church Slavonic stopa "step, pace," stepeni "step, degree"). The notion is perhaps "a treading firmly on; a foothold."

Transitive sense (as in step foot in) attested from 1530s. Related: Stepped; stepping. Originally strong (past tense stop, past participle bestapen); weak forms emerged 13c., universal from 16c. To step out "leave for a short time" is from 1530s; meaning "to go out in public in style" is from 1907. Step on it "hurry up" is 1923, from notion of gas pedal.