Proto-Austric: *kuk
Meaning: a k. of vessel
Proto-Austronesian: *maŋkuk
Austronesian meaning: barrow (not in B)
Proto-Thai: ZhT *ko:k (Ben.)
Thai meaning: cup
References: Ben 262, Peiros 1998, 90, 220 - with some confusion of this root and ST *Ghʷāk)