reputable (adj.) Look up reputable at Dictionary.com
1610s, from repute + -able. Meaning "having a good reputation" is from 1670s. Related: Reputably.
reputation (n.) Look up reputation at Dictionary.com
mid-14c., "credit, good reputation," from Latin reputationem (nominative reputatio) "consideration, a thinking over," noun of action from past participle stem of reputare "reflect upon, reckon, count over," from re- "repeatedly" (see re-) + putare "to reckon, consider" (see putative).
repute (v.) Look up repute at Dictionary.com
late 14c., from Middle French reputer (late 13c.) or directly from Latin reputare "to count over, reckon; think over" (see reputation). Related: Reputed; reputing.
repute (n.) Look up repute at Dictionary.com
1550s, from repute (v.).
reputed (adj.) Look up reputed at Dictionary.com
1540s, "held in repute," past participle adjective from repute (v.). Meaning "supposed to be" is from 1570s. Related: Reputedly.
request (n.) Look up request at Dictionary.com
mid-14c., from Old French requeste (Modern French requête) "a request," from Vulgar Latin *requaesita, from Latin requisita "a thing asked for," fem. of requisitus "requested, demanded," from past participle stem of requirere (see require).
request (v.) Look up request at Dictionary.com
1530s, from request (n.) or from Middle French requester, from Old French requester "ask again, request, reclaim," from requeste. Related: Requested; requesting.
requiem (n.) Look up requiem at Dictionary.com
"mass for repose of the soul of the dead," c.1300, from Latin requiem, accusative singular of requies "rest (after labor), repose," from re-, intensive prefix (see re-), + quies "quiet" (see quiet (adj.)). It is the first word of the Mass for the Dead in the Latin liturgy: Requiem æternam dona eis, Domine .... ["Grant them eternal rest, O Lord ...."]
requiescat (n.) Look up requiescat at Dictionary.com
name of a prayer for the repose of the dead, from Latin phrase requiescat in pace (often abbreviated R.I.P.), literally "may he (or she) begin to rest in peace," from third person singular inceptive of requies "rest, repose" (see requiem).
require (v.) Look up require at Dictionary.com
late 14c., "to ask a question, inquire," from Old French requerre "seek, procure; beg, ask, petition; demand," from Vulgar Latin *requaerere, from Latin requirere "seek to know, ask," from re-, here perhaps meaning "repeatedly" (see re-), + quaerere "ask, seek" (see query (v.)).

The original sense of this word has been taken over by request (v.). Sense of "demand (someone) to do (something)" is from 1751, via the notion of "to ask for imperatively, or as a right" (late 14c.). Related: Required; requiring.
required (adj.) Look up required at Dictionary.com
c.1600, past participle adjective from require (v.). Required reading attested from 1881.
requirement (n.) Look up requirement at Dictionary.com
1520s, "request, requisition," from require + -ment. Meaning "things required, a need" is from 1660s. Meaning "that which must be accomplished, necessary condition" is from 1841. Related: Requirements.
requisite (adj.) Look up requisite at Dictionary.com
mid-15c., from Latin requisitus, past participle of requirere (see require). As a noun from c.1600.
requisition (n.) Look up requisition at Dictionary.com
c.1400, from Old French requisicion (12c.) and directly from Medieval Latin requisitionem (nominative requisitio) "a searching," from past participle stem of requirere (see require).
requisition (v.) Look up requisition at Dictionary.com
1837, from requisition (n.). Related: Requisitioned; requisitioning.
requisitioner (n.) Look up requisitioner at Dictionary.com
1877, agent noun from requisition (v.). Earlier was requisitionist (1819).
requital (n.) Look up requital at Dictionary.com
1570s, from requite + -al (2).
requite (v.) Look up requite at Dictionary.com
c.1400, "repay" (for good or ill), from re- "back" + Middle English quite "clear, pay up," earlier variant of quit (see quit). Related: Requited; requiting.
reredos (n.) Look up reredos at Dictionary.com
"screen behind an altar," late 14c., from Anglo-French rere-, archaic comb. form of rear (n.), + dos "back" (see dossier). Klein's sources suggest it is aphetic of Anglo-French areredos, from Old French arere "at the back" (Modern French arrière).
rerun (v.) Look up rerun at Dictionary.com
also re-run, 1804, in reference to races, from re- "back, again" + run (v.). The noun, in reference to film, is recorded from 1934; of television programs from 1955. Related: Reran; rerunning.
res ipsa loquitur Look up res ipsa loquitur at Dictionary.com
Latin, "the thing speaks for itself."
res judicata (n.) Look up res judicata at Dictionary.com
Latin, "a point decided by competent authority."
resale (n.) Look up resale at Dictionary.com
1620s, from re- "back, again" + sale (n.).
reschedule (v.) Look up reschedule at Dictionary.com
1912, from re- "back, again" + schedule (v.). Related: Rescheduled; rescheduling.
rescind (v.) Look up rescind at Dictionary.com
1630s, from French rescinder "cut off, cancel" (15c.), and directly from Latin rescindere "to cut off, tear off, abolish," from re- "back" (see re-) + scindere "to cut, split" (see shed (v.)). Related: Rescinded; rescinding.
rescission (n.) Look up rescission at Dictionary.com
1610s, "action of cutting off;" 1650s, "action of annulling," from Late Latin rescissionem (nominative rescisio) "annulment," noun of action from past participle stem of rescindere "to cut off; abolish" (see rescind).
rescue (n.) Look up rescue at Dictionary.com
late 14c., from rescue (v.). Earlier noun was rescous (early 14c.), from Old French rescous.
rescue (v.) Look up rescue at Dictionary.com
c.1300, from stem of Old French rescorre "protect, keep safe; free, deliver" (Modern French recourre), from re-, intensive prefix (see re-), + escourre "to cast off, discharge," from Latin excutere "to shake off, drive away," from ex- "out" (see ex-) + -cutere, combining form of quatere "to shake" (see quash). Related: Rescued; rescuing.
research (n.) Look up research at Dictionary.com
1570s, "act of searching closely," from Middle French recerche (1530s, Modern French recherche), back-formation from Old French recercher (see research (v.)). Meaning "scientific inquiry" is first attested 1630s. Phrase research and development is recorded from 1923.
research (v.) Look up research at Dictionary.com
1590s, from Middle French recercher, from Old French recercher "seek out, search closely," from re-, intensive prefix (see re-), + cercher "to seek for" (see search (v.)). Related: Researched; researching.
reseat (v.) Look up reseat at Dictionary.com
"to seat again," 1630s, from re- + seat (v.). Related: Reseated; reseating.
resect (v.) Look up resect at Dictionary.com
1650s, from Latin resectus, past participle of resecare "to cut off, cut loose, curtail," from re-, intensive prefix (see re-), + secare "to cut" (see section (n.)). Surgical sense is from 1846. Related: Resected; resecting.
resection (n.) Look up resection at Dictionary.com
1610s, from Latin resectionem (moninative resectio), noun of action from past participle stem of resecare "cut off, cut loose" (see resect). Surgical sense is from 1775.
resemblance (n.) Look up resemblance at Dictionary.com
late 14c., from Anglo-French resemblance (c.1300), from Old French resembler (see resemble) + -ance.
resemble (v.) Look up resemble at Dictionary.com
mid-14c., from Old French resembler "belike" (12c., Modern French ressemble), from re-, intensive prefix, + sembler "to appear, to seem, be like," from Latin simulare "to copy" (see similar (adj.)). Related: Resembled; resembling.
resend (v.) Look up resend at Dictionary.com
1550s, from re- + send. Related: Resent; resending.
resent (v.) Look up resent at Dictionary.com
"take (something) ill; be in some degree angry or provoked at," c.1600, from French ressentir "feel pain, regret," from Old French resentir "feel again, feel in turn" (13c.), from re-, intensive prefix, + sentir "to feel," from Latin sentire (see sense (n.)). Related: Resented; resenting.
resentful (adj.) Look up resentful at Dictionary.com
1650s, from resent + -ful. Related: Resentfully; resentfulness.
resentment (n.) Look up resentment at Dictionary.com
1610s, from French ressentiment (16c.), verbal noun from ressentir (see resent).
"Ridicule often parries resentment, but resentment never yet parried ridicule." [Walter Savage Landor, "Imaginary Conversations"]
reservation (n.) Look up reservation at Dictionary.com
late 14c., "act of reserving," from Old French reservation (14c.) and directly from Late Latin reservationem (nominative reservatio), noun of action from past participle stem of Latin reservare (see reserve (n.)). Mental sense is from c.1600. U.S. sense "tract of public land set aside for some special use" is recorded from 1789, originally in reference to the Six Nations in New York State. Meaning "act or fact of engaging a room, a seat, etc." is from 1904, originally American English.
reserve (v.) Look up reserve at Dictionary.com
mid-14c., from Old French reserver "set aside, withhold" (12c.) and directly from Latin reservare "keep back, save up; retain, preserve," from re- "back" (see re-) + servare "to keep, save, preserve, protect" (see observe). Meaning "to book" is from 1935. Related: Reserved; reserving.
reserve (n.) Look up reserve at Dictionary.com
"something stored up," 1610s, from reserve (v.) or from French réserve, a Middle French back-formation from reserver. Meaning "self-imposed restraint on freedom of words or actions; habit of keeping back the feelings" is from 1650s.
reserved (adj.) Look up reserved at Dictionary.com
"guarded" (in manner), c.1600, past participle adjective from reserve (v.). Of seats, tables from 1858.
reservist (n.) Look up reservist at Dictionary.com
"soldier who belongs to the reserves," 1872, from French réserviste, from reserver (see reserve (v.)).
reservoir (n.) Look up reservoir at Dictionary.com
1680s, "a place where something tends to collect," originally figurative, from French réservoir "storehouse," from Old French reserver "to reserve" (see reserve (n.)). Specific meaning "artificial basin to collect and store a large body of water" is from 1705.
reset (v.) Look up reset at Dictionary.com
also re-set, 1650s, "place (a gem) in a new setting," from re- + set (v.). Related: Resetting. Meaning "cause a device to return to a former condition" is from 1847; intransitive sense from 1897. As a noun, from 1847.
resettle (v.) Look up resettle at Dictionary.com
1540s (transitive), of places, from re- + settle (v.). Intransitive sense from 1821. Meaning "Bring into order again" is from 1610s. Related: Resettled; resettling.
resettlement (n.) Look up resettlement at Dictionary.com
1630s, from resettle + -ment. In a South African context from 1954.
reshape (v.) Look up reshape at Dictionary.com
also re-shape, 1798, from re- + shape (v.). Related: Reshaped; reshaping.
reshuffle (v.) Look up reshuffle at Dictionary.com
1816 of cards; 1890 of organizations; from re- "back, again" + shuffle (v.). Related: Reshuffled; reshuffling. As a noun from 1861.