10 letters · 24 points in Scrabble
originFormed by the suffixation of prōiect- (the perfect passive participial stem of the Classical Latin prōiciō, whence the English verb project) with the English -ive, forming project + -ive; however, compare the post-Classical Latin prōiectīvus (“relating to purging”).
Etymology from Wiktionary, CC BY-SA 3.0