poke (n.2)youdaoicibaDictYouDict[poke 词源字典]
"pokeweed; a weed used in medicine and dyeing," colonial American, from native words, possibly a confusion of similar-sounding Native American plant names; from 1630s in English as "tobacco plant," short for uppowoc (1580s), from Algonquian (Virginia) *uppowoc. Later (1708) the word is used in the sense "pokeweed," as a shortened form of puccoon, from Algonquian (Virginia) *puccoon, name of a plant used for dyeing." Native roots for "smoke" and "stain" have been proposed as the origin or origins.[poke etymology, poke origin, 英语词源]