11 letters · 17 points in Scrabble
noun a tense of verbs used in describing action that is on-going
noun a person who favors a political philosophy of progress and reform and the protection of civil liberties
adjective favoring or promoting progress
originFrom the Middle French progressif, from the Latin prōgressīvus, from prōgredior (perfect participial stem: prōgress-) + -īvus. Displaced native Old English forþgenġe. By surface analysis, progress + -ive.
Etymology from Wiktionary, CC BY-SA 3.0