chisel   
fandrabato
[vato, a stone.] A chisel for chipping stones. [Richardson 1885]
fandrabavy
[vavy, feminine.] A very large chisel. [Richardson 1885]
fandradahy
[lahy, masculine.] A very small chisel. [Richardson 1885]
fandraka
a chisel [Richardson 1885, Hallanger 1973]
mamandraka
to chisel, to mortice. [Richardson 1885]
to chisel [Hallanger 1973]