Entry record from Sneddon (1978a): Proto-Minahasan
Page number: 138
*buku
• knee; joint; knot.
Note: Tdn wuku, Tse, Tbl buku 'joint, knuckle, knot'; Ttb wuku 'joint, knuckle, knot'; (Langoan) 'knee'; Tsw buhu 'knee; knuckle, joint' [San buku 'knee, joint, knot (in wood)'; PPh *buku 'joint; knot'].