Are yams and sweet potatoes the same?
"garments" (now surviving, if at all, in widow's weeds), plural of archaic weed, from Old English wæd, wæde "garment, cloth," from Proto-Germanic *wedo (cf. Old Saxon wadi, Old Frisian wede "garment," Old Norse vað "cloth, texture," Old High German wat "garment"), probably from PIE *wedh-, extended form of root *au- "to weave." Archaic since early 19c.
"plant not valued for use or beauty," Old English weod, uueod "grass, herb, weed," from Proto-Germanic *weud- (cf. Old Saxon wiod, East Frisian wiud), of unknown origin. Meaning "tobacco" is from c.1600; that of "marijuana" is from 1920s.
"to clear the ground of weeds," late Old English weodian, from the source of weed (n.). Related: Weeded; weeding.
Clothing, esp for mourning (1362+)
1. Refers to development projects or algorithms that have no possible relevance or practical application. Comes from "off in the weeds". Used in phrases like "lexical analysis for microcode is serious weeds."
2. At CDC/ETA before its demise, the phrase "go off in the weeds" was equivalent to IBM's branch to Fishkill and mainstream hackerdom's jump off into never-never land.