disputatious (adj) – inclined to argue or debate
BREAKDOWN: DIS- (apart or away) + PUT- (consider) + -ATE (to make or do) + -IOUS (full of)
— to dispute is to argue, debate, or oppose
— a dispute is an argument, debate, or quarrel
— a disputant is a participant in a dispute
— undisputed means not disputed; unchallenged or universally agreed upon
This word is built on the root PUT-, which means to cut or prune or to think or consider.
Common PUT- words include amputate, computer, deputy, and reputation.
More esoteric PUT- words include deputation and imputable.