Part of speech: Adjective (satellite)
inclined or showing an inclination to dispute or disagree, even to engage in law suits
Example: a style described as abrasive and contentious; a disputatious lawyer; a litigious and acrimonious spirit
Disputatious, Combative, Contentious, Litigious, Disputative
The word "disputative" comes from Latin disputativus.
Latin became the scholarly language of Europe for over 1,500 years, standardizing technical vocabulary.