9 letters · 11 points in Scrabble
originFrom Latin diglōssia. In linguistics introduced 1959 by Charles A. Ferguson, based on French diglossie, from Ancient Greek δίγλωσσος (díglōssos, “bilingual”) + -ία (-ía). Equivalent to di- + -glossia.
Etymology from Wiktionary, CC BY-SA 3.0