maul

nouns

a heavy long-handled hammer used to drive stakes or wedges
maul, sledge, sledgehammer

verbs

split (wood) with a maul and wedges
maul
is a type of (narrower)
separate or cut with a tool, such as a sharp instrument
"cleave the bone"
cleave, rive, split
injure badly by beating
mangle, maul
is derived from
mauler