phonological (adj.) Look up phonological at Dictionary.com
1818, from phonology + -ical. Related: Phonologically.
phonology (n.) Look up phonology at Dictionary.com
1799, from phono- + -logy.
phonophobia (n.) Look up phonophobia at Dictionary.com
1877, from phono- + -phobia.
phony (adj.) Look up phony at Dictionary.com
also phoney, "not genuine," 1899, perhaps an alteration of fawney "gilt brass ring used by swindlers."
His most successful swindle was selling "painted" or "phony" diamonds. He had a plan of taking cheap stones, and by "doctoring" them make them have a brilliant and high class appearance. His confederates would then take the diamonds to other pawnbrokers and dispose of them. ["The Jewelers Review," New York, April 5, 1899]
The noun meaning "phony person or thing" is attested from 1902.
phooey Look up phooey at Dictionary.com
expression of contempt, 1929, from Yiddish, from German pfui (attested in English from 1866); popularized by Walter Winchell. Phoo "vocalic gesture expressing contemptuous rejection" is recorded from 1640s.
phoresis (n.) Look up phoresis at Dictionary.com
see phoresy.
phoresy (n.) Look up phoresy at Dictionary.com
1914, from French phorésie (1896), from Greek phoresis "being carried," from pherein "to carry" (see infer).
phosphate (n.) Look up phosphate at Dictionary.com
a salt of phosphoric acid, 1795, from French phosphate (1787), from phosphore (see phosphorus) + -ate (3).
phosphor (n.) Look up phosphor at Dictionary.com
"morning star," 1630s, from Latin phosphorus "the morning star" (see phosphorus). Meaning "anything phosphorescent" is from 1705.
phosphorescence (n.) Look up phosphorescence at Dictionary.com
1796, from verb phosphoresce (1794; see phosphorescent) + -ence.
phosphorescent (adj.) Look up phosphorescent at Dictionary.com
1766, from Modern Latin phosphorus (see phosphorus) + -escent. Related: Phosphorescently.
phosphoric (adj.) Look up phosphoric at Dictionary.com
1784, from French phosphorique, from phosphore (see phosphorous). Related: Phosphorical (1753).
phosphorous (adj.) Look up phosphorous at Dictionary.com
1777, "phosphorescent," from phosphorus + -ous. The chemical sense (1794) is immediately from French phosphoreux.
phosphorus (n.) Look up phosphorus at Dictionary.com
"substance or organism that shines of itself," 1640s, from Latin phosphorus "light-bringing," also "the morning star" (a sense attested in English from 1620), from Greek Phosphoros "morning star," literally "torchbearer," from phos "light," contraction of phaos "light, daylight" (related to phainein "to show, to bring to light;" see phantasm) + phoros "bearer," from pherein "to carry" (see infer).

As the name of a non-metallic chemical element, it is recorded from 1680, originally one among several substances so called; the word used exclusively of the element from c. 1750. It was discovered in 1669 by Henning Brand, merchant and alchemist of Hamburg, who derived it from urine. Lavoisier demonstrated it was an element in 1777. According to Flood, "It is the first element whose discoverer is known."
photic (adj.) Look up photic at Dictionary.com
1843, "pertaining to light;" 1899, "pertaining to the parts of the ocean penetrated by sunlight," from Greek phot-, comb. form of phos "light" (related to phainein "to show, to bring to light;" see phantasm) + -ic.
photo (n.) Look up photo at Dictionary.com
1860, shortening of photograph. The verb is first recorded 1865, from the noun. Photo finish is attested from 1936. Photo opportunity first recorded 1974.
photo- Look up photo- at Dictionary.com
word-forming element meaning "light" or "photographic" or "photoelectric," from Greek photo-, comb. form of phos (genitive photos) "light," from PIE root *bha- (1) "to shine" (see phantasm).
photocopier (n.) Look up photocopier at Dictionary.com
1934, agent noun from photocopy (v.).
photocopy (v.) Look up photocopy at Dictionary.com
1924 in the sense of "make a photographic reproduction," from photo- "photographic" + copy (v.). The usual modern meaning arose 1942 with the advent of xerography. The noun is recorded from 1934. Related: Photocopied; photocopying.
photogenic (adj.) Look up photogenic at Dictionary.com
1839, "produced or caused by light," from photo- "light" + -genic "produced by" (see genus). Originally in photogenic drawing, the early term for "photography;" meaning "photographing well" is first attested 1928, from photo- as short for "photograph."
photograph (n.) Look up photograph at Dictionary.com
1839, "picture obtained by photography," coined by Sir John Herschel from photo- + -graph "instrument for recording; something written." It won out over other suggestions, such as photogene and heliograph. Neo-Anglo-Saxonists prefer sunprint; and sun-picture (1846) was an early Englishing of the word. The verb, as well as photography, are first found in a paper read before the Royal Society on March 14, 1839. Related: Photographed; photographing.
photographer (n.) Look up photographer at Dictionary.com
1843, agent noun from photograph (v.). (Photographist also is attested from 1843).
photographic (adj.) Look up photographic at Dictionary.com
1839, from photograph + -ic. Photographic memory is from 1940. Related: Photographical; photographically.
photography (n.) Look up photography at Dictionary.com
1839, from photo- + -graphy. See photograph.
photogravure (n.) Look up photogravure at Dictionary.com
"process of engraving by photography," 1869, from photo- + gravure, from grave (v.) + -ure.
photoinduction (n.) Look up photoinduction at Dictionary.com
1947, from photo- + induction.
photojournalism (n.) Look up photojournalism at Dictionary.com
1944, from photo- + journalism. Related: Photojournalist.
photomontage (n.) Look up photomontage at Dictionary.com
1931, from photo + montage.
photon (n.) Look up photon at Dictionary.com
"unit of electromagnetic radiation," 1926 in modern sense, from photo- "light" + -on "unit."
photoperiodism (n.) Look up photoperiodism at Dictionary.com
1920, from photoperiod (1920, from photo- + period) + -ism.
photophobia (n.) Look up photophobia at Dictionary.com
1799, from photo- + -phobia. Related: Photophobic.
photoshop (v.) Look up photoshop at Dictionary.com
"to edit an image using a computer program," 1992, originally, and properly still, only in reference to Photoshop, a bitmap graphics editor trademarked and published by Adobe, released in 1990. Like Taser and Dumpster, it has a tendency to become generic, but if you use it that way in print their lawyers will still send you The Letter. Related: Photoshopped; photoshopping.
photosphere (n.) Look up photosphere at Dictionary.com
1660s, "orb of light," from photo- + -sphere. Astronomical sense is from 1848.
photostat (n.) Look up photostat at Dictionary.com
1909, a type of copying machine (trademark Commercial Camera Company, Providence, R.I.) whose name became a generic noun and verb (1914) for "photocopy;" from photo- + stat.
photosynthesis (n.) Look up photosynthesis at Dictionary.com
1898, loan-translation of German Photosynthese, from photo- "light" (see photo-) + synthese "synthesis" (see synthesis). Another early word for it was photosyntax.
[T]he body of the work has been rendered into English with fidelity, the only change of moment being the substitution of the word "photosynthesis" for that of "assimilation." This change follows from a suggestion by Dr. Barnes, made a year ago before the American Association at Madison, who clearly pointed out the need of a distinctive term for the synthetical process in plants, brought about by protoplasm in the presence of chlorophyll and light. He proposed the word "photosyntax," which met with favor. In the discussion Professor MacMillan suggested the word "photosynthesis," as etymologically more satisfactory and accurate, a claim which Dr. Barnes showed could not be maintained. The suggestion of Dr. Barnes not only received tacit acceptance by the botanists of the association, but was practically approved by the Madison Congress in the course of a discussion upon this point. ["The Botanical Gazette," vol. XIX, 1894]
photosynthesize (v.) Look up photosynthesize at Dictionary.com
1910, from photosynthesis + -ize. Related: Photosynthesized; photosynthesizing.
phototropism (n.) Look up phototropism at Dictionary.com
1899, from German phototropie (1892), from photo- + tropism.
photovoltaic (adj.) Look up photovoltaic at Dictionary.com
1923, from photo- + voltaic. Related: Photovoltaics (see -ics).
phrasal (adj.) Look up phrasal at Dictionary.com
1871, from phrase (v.) + -al (1). Related: Phrasally.
phrase (n.) Look up phrase at Dictionary.com
1520s, "manner or style of expression," also "group of words with some unity," from Late Latin phrasis "diction," from Greek phrasis "speech, way of speaking, enunciation, phraseology," from phrazein "to express, tell," from phrazesthai "to consider," from PIE *gwhren- "to think" (see frenetic). The musical sense of "short passage" is from 1789.
phrase (v.) Look up phrase at Dictionary.com
"to put into a phrase," 1560s; see phrase (n.). Related: Phrased; phrasing.
phraseology (n.) Look up phraseology at Dictionary.com
1550s, coined erroneously in Greek as phraseologia (1550s), from Greek phrasis "way of speaking" (see phrase (n.)) + -logia (see -logy). The correct form would be *phrasiology. Originally "a phrase book," meaning "way of arranging words, characteristic style of expression" is from 1660s.
phrasing (n.) Look up phrasing at Dictionary.com
1610s, verbal noun from phrase (v.).
phreak (n.) Look up phreak at Dictionary.com
1972, originally in phone phreak, one of a set of technically creative people who electronically hacked or defrauded telephone companies of the day.
The phreaks first appeared on the US scene in the early 1960s, when a group of MIT students were found to have conducted a late night dialling experiment on the Defense Department's secret network. They were rewarded with jobs when they explained their system to Bell investigators. ... The name "phone phreak" identified the enthisiasts with the common underground usage of freak as someone who was cool and used drugs. ["New Scientist," Dec. 13, 1973]
The ph- in phone may have suggested the alteration, and this seems to be the original of the 1990s slang fad for substituting ph- for f- (as in phat).
phrenetic (adj.) Look up phrenetic at Dictionary.com
early Modern English restored spelling of frenetic (late 14c.). A doublet of frantic.
phrenic (adj.) Look up phrenic at Dictionary.com
"pertaining to the diaphragm," 1704, from Modern Latin phrenicus, from Greek phren "diaphragm, mind" (see phreno-) + -ic.
phreno- Look up phreno- at Dictionary.com
before vowels phren-, word-forming element meaning "mind," also "diaphragm," from Greek phreno-, comb. form of phrene properly "diaphragm, muscle which parts the abdomen from the thorax;" in Homer extended to "parts around the heart, breast," hence "heart" (as a seat of passions), "mind, seat of thoughts, wits, senses," of unknown origin.
phrenology (n.) Look up phrenology at Dictionary.com
1815, literally "mental science," from phreno- + -logy "study of." Applied to the theory of mental faculties originated by Gall and Spurzheim that led to the 1840s mania for reading personality clues in the shape of one's skull and the "bumps" of the head. Related: Phrenological; phrenologist.
Phrygian Look up Phrygian at Dictionary.com
late 15c., "native of Phrygia," region in ancient Asia Minor; Phrygian mode in ancient Greek music theory was held to be "of a warlike character." Phrygian cap (1796) was the type adopted by freed slaves in Roman times, and subsequently identified as the cap of Liberty.
phthisic (adj.) Look up phthisic at Dictionary.com
late 14c., tysyk "of or pertaining to a wasting disease," from Old French tisike, phtisique "consumptive" (11c.), from Vulgar Latin *phthisicus, from Greek phthisikos "consumptive," from phthisis "wasting, consumption" (see phthisis). Earlier in English as a noun meaning "wasting disease of the lungs" (mid-14c.). Related: Phthisical.
The old pronunciation dropped the ph-, but this will probably recover its sound now that everyone can read. [Fowler]