adze

talsokirves, talso A cutting tool that has a curved blade set at a right angle to the handle and is used in shaping wood.
1719, w:Daniel Defoe|Daniel Defoe, w:Robinson Crusoe|Robinson Crusoe:

...if I wanted a board, I had no other way but to cut down a tree, set it on an edge before me, and hew it flat on either side with my axe, till I brought it to be thin as a plank, and then dub it smooth with my adze.