13 letters · 23 points in Scrabble
originFrom Ancient Greek θαλασσοκρατία (thalassokratía, “empire of the sea”), from θάλασσα (thálassa, “sea”) + -κρατία (-kratía, “government, rule”). By surface analysis, thalasso- + -cracy.
Etymology from Wiktionary, CC BY-SA 3.0