10 letters · 20 points in Scrabble
noun a form of social organization in which a male is the family head and title is traced through the male line
originFrom Latin patriarchia, from Byzantine Greek πατριαρχία (patriarkhía), from Koine Greek πατριάρχης (patriárkhēs, “patriarch”), from πατρία (patría) and ἄρχω (árkhō). By surface analysis, patri- + -archy.
Etymology from Wiktionary, CC BY-SA 3.0