potyoudaoicibaDictYouDict[pot 词源字典]
pot: [OE] Pot was borrowed in the late Old English period from medieval Latin *pottus, which also produced French pot ‘pot’. This may have been an alteration of pōtus ‘drinking-cup’, which in classical Latin meant simply ‘drink’ (it was derived from the same stem as produced pōtiō ‘drink’, source of English poison and potion). Related or derived forms in English include porridge, potash, poteen [19] (etymologically spirits distilled in a ‘little pot’ – Irish poitín is a diminutive of pota ‘pot’), potpourri [18] (literally in French ‘rotten pot’), pottery [15], and putty.
=> porridge, potage, potash, poteen, pottage, putty[pot etymology, pot origin, 英语词源]
pot (n.1)youdaoicibaDictYouDict
"vessel," from late Old English pott and Old French pot "pot, container, mortar" (also in erotic senses), both from a general Low Germanic (Old Frisian pott, Middle Dutch pot) and Romanic word from Vulgar Latin *pottus, of uncertain origin, said by Barnhart and OED to be unconnected to Late Latin potus "drinking cup." Celtic forms are said to be borrowed from English and French.

Slang meaning "large sum of money staked on a bet" is attested from 1823. Pot roast is from 1881; phrase go to pot (16c.) suggests cooking. In phrases, the pot calls the kettle black-arse is from c. 1700; shit or get off the pot is traced by Partridge to Canadian armed forces in World War II.
pot (n.2)youdaoicibaDictYouDict
"marijuana," 1938, probably a shortened form of Mexican Spanish potiguaya "marijuana leaves."
pot (v.)youdaoicibaDictYouDict
"to put in a pot," 1610s, from pot (n.1). Related: Potted; potting. Earlier it meant "to drink from a pot" (1590s).