socket

socket c.1300, "spearhead" (originally one shaped like a plowshare), from Anglo-Fr. soket "spearhead" (mid-13c.), dim. of O.Fr. soc "plowshare," from V.L. *soccus, probably from a Gaulish source, Cf. Welsh swch "plowshare," Middle Irish soc "plowshare," prop. "hog's snout," cognate with L. sus "swine;" see SOW (Cf. sow) (n.) "female pig." Meaning "hollow part or piece for receiving and holding something" first recorded mid-15c.; anatomical sense is from c.1600; domestic electrical sense first recorded 1885. Socket wrench is attested from 1905.