Etymonline/screw

(n.) c.1400, from M.Fr. escroue "nut, cylindrical socket, screwhole," of uncertain etymology; not found in other Romanic languages. Perhaps via Gallo-Romance *scroba or W.Gmc. *scruva from V.L. scrobis "screw-head groove," in classical Latin "ditch, trench," also "vagina" (Diez, though OED finds this "phonologically impossible"). Kluge and others trace it to L. scrofa "breeding sow," perhaps based on the shape of a pig's penis (cf. Port. porca, Sp. perca "a female screw," from L. porca "sow"). A group of apparently cognate Germanic words (M.L.G., M.Du. schruve, Du. schroef, Ger. Schraube, Swed. skrufva "screw") often are said to be French loan-words. Sense of "means of pressure or coercion" is from 1640s, probably in reference to instruments of torture (e.g. thumbscrews). Meaning "prison guard, warden" is 1812 in underworld slang, originally in reference to the key they carried. To have a screw loose "have a dangerous (usually mental) weakness" is recorded from 1810. Screwy (1820) originally meant "tipsy, slightly drunk;" sense of "crazy, ridiculous" first recorded 1887. [] 
(v.) "to twist (something) like a screw," 1590s, from screw (n.). Slang meaning "to copulate" dates from at least 1725, on the notion of driving a screw into something. Meaning "a prostitute" also is attested from 1725. Slang meaning "an act of copulation" (n.) is recorded from 1929. First recorded 1949 in exclamations as a euphemism. Related: Screwed; screwing. [] 
; Etymonline/shrew 
; Etymonline/marten 
 
==Notes==
 en: screw
 de: Schraube
 is: skrúfa
 nl: schroef
 pl: śruba
 ro: șurub 
 ru: surup
 sv: skruv
; Screwing shrew-mouse?
* Note again "O.E. screawa "shrew-mouse" unknown outside English" as noted above, and its screwing (burrowing) behavior, which may also relate to that of Latin scrofa "sow, female pig" (for breeding) that does scrape if not burrow the earth. 
* Some cute animals such as the weasel, the shrew, the polecat, and the cunny "rabbit" from cuniculus, who live in the burrow, appear worth a metaphor for the cunt or mons veneris.
* Latin cuniculus "rabbit, rabbit's burrow" must originally mean either the rabbit as a dim. of Latin cunnus "woman, cunt," or its burrow as a metaphor for a woman's buttom or vagina. 
* Latin cunnus "woman, cunt" may be akin to:
** Latin cuneus "wedge" 
** Latin conus "cone" 
** Latin cunae "cradle, nest for young bird." 
** Greek kunia "cradle, swing"
** Greek gyne "woman, wife" cf. PIE gwen
** Guaraní kuña "woman" 
** Icelandic kona "woman, wife"
** Catalan cony "vagina"
** English coney "cunt" cf. "No money no coney"
** French con "cunt"
** Portuguese cona "cunt"
** Spanish coño "cunt"
** Slavic kuna and the like "marten".
 en: carve 
 sv: karva
 la: sculpo
 la: scalpo
 ro: scărpina
 
 en: scrape
 is: skrapa
 cs: škrábat
 nl: krabben
 nl: graven
 de: graben
 da: grave
 sv: gräva
 it: graffiare
 
 ko: galgda 갉다 
 ko: geulgda 긁다
 ko: galkwuida 갈퀴다
 ko: halkwuida 할퀴다	
 en: engrave
 nl: graveren
 de: gravieren
 es: grabar
 fr: graver
 no: gravere
 sv: gravera
 
 en: grave
 nl: graf
 de: Grab
 is: gröf
 sv: grav
 
 en: groove
 nl: groef 
 nl: groeve "pit"
 de: Grube "pit"
 no: grov "brook"	
 en: scribe
 la: scribo
 is: skrifa
 is: skrá
 el: graphe
 en: graphic
 
 en: screw
 nl: schroef
 de: Schraube
 is: skrúfa
 pl: śruba
 ro: surub
 ru: surup
 sv: skruv
 cs: šroub "bolt"
 
 en: crab
; Footnotes
; Comments
: group=c
; Quotes
: group=q
; References
: group=r
; Wikis
: group=w
; Xternal links
: group=x