8 letters · 9 points in Scrabble
verb engage in legal proceedings
verb institute legal proceedings against; file a suit against
originFirst attested in 1606; borrowed from Latin lītigātus, perfect passive participle of lītigō (see -ate (verb-forming suffix)), from līs (“a lawsuit”, oblique stem in līt-) + -igō (denominative verb-forming suffix).
Etymology from Wiktionary, CC BY-SA 3.0