shambles (n.)youdaoicibaDictYouDict[shambles 词源字典]
early 15c., "meat or fish market," from schamil "table, stall for vending" (c. 1300), from Old English scamol, scomul "stool, footstool" (also figurative); "bench, table for vending," an early Proto-Germanic borrowing (Old Saxon skamel "stool," Middle Dutch schamel, Old High German scamel, German schemel, Danish skammel "footstool") from Latin scamillus "low stool, a little bench," ultimately a diminutive of scamnum "stool, bench," from PIE root *skabh- "to prop up, support." In English, sense evolved from "place where meat is sold" to "slaughterhouse" (1540s), then figuratively "place of butchery" (1590s), and generally "confusion, mess" (1901, usually in plural).[shambles etymology, shambles origin, 英语词源]
snack (n.)youdaoicibaDictYouDict
c. 1400, "a snatch or snap" (especially that of a dog), from snack (v.). Later "a snappish remark" (1550s); "a share, portion, part" (1680s; hence old expression go snacks "share, divide; have a share in"). Main modern meaning "a bite or morsel to eat hastily" is attested from 1757. Snack bar is attested from 1923. Commercial plural form snax attested from 1942 in the vending machine trade.
vend (v.)youdaoicibaDictYouDict
1620s, from Latin vendere "to sell, give for a bribe; praise, cry up," contraction of venumdare "offer for sale," from venum "for sale" (see venal) + dare "to give" (see date (n.1)). Related: Vended; vending; vendible (early 14c.). Vending machine is recorded from 1889.