Sock
Old English socc ‘light shoe’, of Germanic origin, from Latin soccus ‘comic actor's shoe, light low-heeled slipper’, from Greek sukkhos .
wiktionary
From Middle English socke, sokke, sok, from Old English socc(“sock, light shoe, slipper”), a West Germanic borrowing from Latin soccus(“a light shoe or slipper, buskin”), from Ancient Greek σύκχος(súkkhos, “a kind of shoe”), probably from Phrygian or from an Anatolian language. Cognate with Scots sok(“sock, stocking”), West Frisian sok(“sock”), Dutch sok(“sock”), German Socke(“sock”), Danish sok, sokke(“sock”), Swedish sock, socka(“sock”), Icelandic sokkur(“sock”).
Onomatopoeic. Compare Portuguese soco ("a hit with one's hand; a punch").
From French soc, from Late Latin soccus, perhaps of Celtic origin.
From socket.
etymonline
sock (n.1)
"knitted or woven covering for the foot, short stocking," early 14c., from Old English socc "slipper, light shoe," from Latin soccus "slipper, light low-heeled shoe," probably a variant of Greek sykchos, word for a kind of shoe, perhaps from Phrygian or another Asiatic language. The Latin word was borrowed generally in West Germanic (Middle Dutch socke, Dutch sok, Old High German soc, German Socke). To knock the socks off (someone) "beat thoroughly" is recorded from 1845, American English colloquial. Teen slang sock hop is c. 1950, from notion of dancing without shoes.
sock (v.1)
1700, "to beat, hit hard, pitch into," of uncertain origin. To sock it to (someone) is attested by 1877.
sock (v.2)
"to stash (money) away as savings," 1942, American English, from the notion of hiding one's money in a sock (see sock (n.1)).
sock (n.2)
"a blow, a hit with the fist," 1700, from or related to sock (v.1).
