14 letters · 22 points in Scrabble
originFrom Medieval Latin transformātīvus (“transformative”), from Latin trānsfōrmātus (“transformed”) + -īvus (suffix attached to the perfect passive participial stems of verbs, forming deverbal adjectives meaning ‘doing or related to doing [the verb]’). Trānsfōrmātus is the perfect passive participle of trānsfōrmō (“to transform”), from trāns- (prefix meaning ‘across; beyond; through’) + fōrmō (“to…
Etymology from Wiktionary, CC BY-SA 3.0