英语词源字典 - 在线词源网站

stay (v.1)[stay 词源字典]: mid-15c., "cease going forward, come to a halt," also (transitive) "detain, hold back," from Old French estai-, stem of estare "to stay or stand," from Latin stare "to stand, stand still, remain standing; be upright, be erect; stand firm, stand in battle; abide; be unmovable; be motionless; remain, tarry, linger; take a side," (source also of Italian stare, Spanish estar "to stand, to be"), from PIE root *sta- "to stand" (see stet). Sense of "remain" is first recorded 1570s; that of "reside as a guest for a short period" is from 1550s. Related: Stayed; staying.

Of things, "remain in place," 1590s. Stay put is first recorded 1843, American English. "To stay put is to keep still, remain in order. A vulgar expression" [Bartlett]. Phrase stay the course is originally (1885) in reference to horses holding out till the end of a race. Stay-stomach was (1800) "a snack."[stay etymology, stay origin, 英语词源]
stay (n.1): "support, prop, brace," 1510s, from Middle French estaie "piece of wood used as a support," Old French estaie "prop, support," perhaps from Frankish *staka "support" or some other Germanic word, from Proto-Germanic *stagaz (cognates: Middle Dutch stake "stick," Old English steli "steel," stæg "rope used to support a mast"), from PIE *stak- "to stand, place" (see stay (n.2)). In some uses from stay (v.2).
stay (n.2): "strong rope which supports a ship's mast," from Old English stæg "rope used to support a mast," from Proto-Germanic *stagaz (cognates: Dutch stag, Low German stach, German Stag, Old Norse stag "stay of a ship"), from PIE *stak- "to stand, place," perhaps ultimately an extended form of root *sta- "to stand" (see stet).
stay (n.3): 1520s, "delay, postponement, period of remaining in a place," from stay (v.1). Meaning "action of stoppage, appliance for stopping" is 1530s; that of "suspension of judicial proceedings" is from 1540s.
stay (v.2): "support, sustain," early 15c., from Middle French estayer (Modern French étayer), originally in nautical use, "secure by stays," from estaie (see stay (n.1)). The nautical sense in English is from 1620s. Related: Stayed; staying.
stay-at-home (n.): 1836, from adjectival stay-at-home (1806); see stay (v.1).
staycation (n.): also stay-cation, 2008, American English, a word from the "Great Recession" of that year, from stay (v.1) + ending from vacation.
staymaker (n.): also stay-maker, from stays + maker.
stays (n.): "laced underbodice," c. 1600, from plural of stay (n.1). Also compare bodice.
stead (n.): Old English stede "place, position; standing, firmness, stability, fixity," from Proto-Germanic *stadiz (cognates: Old Saxon stedi, Old Norse staðr "place, spot; stop, pause; town," Swedish stad, Dutch stede "place," Old High German stat, German Stadt "town," Gothic staþs "place"), from PIE *steti-, suffixed form of root *sta- "to stand" (see stet). Related to stand.

Now chiefly in compounds or phrases. Meaning "assistance, use, benefit, advantage" is from c. 1300. Meaning "frame on which a bed is laid" is from c. 1400. The German use of Stadt for "town, city" "is a late development from c. 1200 when the term began to replace Burg" [Cambridge Dictionary of English Place-Names]. The Steads was 16c. English for "the Hanseatic cities."
steadfast (adj.): Old English stedefæst "secure in position, steady, firm in its place," from stede (see stead) + fæst (see fast (adj.)); similar formation in Middle Low German stedevast, Old Norse staðfastr "steadfast, firm; faithful, staunch, firm in one's mind." Of persons, in English, "unshakable, stubborn, resolute" from c. 1200. Related: Steadfastly, steadfastness.
steady (adj.): 1520s, "firmly fixed in place or station" (replacing earlier steadfast), from stead + adjectival suffix -y (2), perhaps on model of Middle Dutch, Middle Low German stadig. Old English had stæððig "grave, serious," and stedig "barren," but neither seems to be the direct source of the modern word. Old Norse cognate stoðugr "steady, stable" was closer in sense. As an adverb from c. 1600.

Originally of things; of persons or minds from c. 1600. Meaning "working at an even rate" is first recorded in 1540s. Steady progress is etymologically a contradiction in terms. Steady state first attested 1885; as a cosmological theory (propounded by Bondi, Gold, and Hoyle), it is attested from 1948. Related: Steadily.
steady (v.): 1520s, transitive and intransitive, from steady (adj.). Related: Steadied; steadying.
steady (n.): 1792, "a steady thing or place," from steady (adj.). From 1885 as "something that holds another object steady." Meaning "one's boyfriend or girlfriend" is from 1897; to go steady is 1905 in teenager slang.
steak (n.): mid-15c., "thick slice of meat cut for roasting," probably from a Scandinavian source such as Old Norse steik "roast meat," related to steikja "to roast on a spit," and ultimately meaning "something stuck" (on a spit), from Proto-Germanic *staiko-, from PIE *steig- "to stick; pointed" (see stick (v.)).
steal (v.): Old English stelan "to commit a theft, to take and carry off clandestinely and without right or leave" (class IV strong verb; past tense stæl, past participle stolen), from Proto-Germanic *stelan (cognates: Old Saxon stelan, Old Norse, Old Frisian stela "to steal, to rob one of," Dutch stelen, Old High German stelan, German stehlen, Gothic stilan "to steal"), from PIE *stel-, possibly a variant of *ster- (3) "to rob, steal."

"The notion of secrecy ... seems to be part of the original meaning of the vb." [OED]. Intransitive meaning "to depart or withdraw stealthily and secretly" is from late Old English. Most IE words for steal have roots in notions of "hide," "carry off," or "collect, heap up." Attested as a verb of stealthy motion from c. 1300 (as in to steal away, late 14c.); of kisses from late 14c.; of glances, sighs, etc., from 1580s. The various sports senses begin 1836. To steal (someone) blind first recorded 1974.
steal (n.): 1825, "act or case of theft," from steal (v.). Meaning "a bargain" is attested by 1942, American English colloquial. Baseball sense of "a stolen base" is from 1867.
stealing (n.): 14c., verbal noun from steal (v.). Old English had stælðing "theft."
stealth (n.): mid-13c., "theft, action or practice of stealing," from a probable Old English *stælþ, which is related to stelen (see steal (v.)), from Proto-Germanic *stælitho (cognates: Old Norse stulþr), with Proto-Germanic abstract noun suffix *-itho (see -th (2)).

Compare heal/health, weal/wealth. Sense of "secret action" developed c. 1300, but the word also retained its etymological sense into 18c. Got a boost as an adjective from stealth fighter, stealth bomber, radar-evading U.S. military aircraft, activated 1983.
stealthy (adj.): c. 1600, from stealth + -y (2). Related: Stealthily; stealthiness.