Orchomenus was the name of two men who each gave his name to a Greek city. One was the son of Zeus and father of Minyas, whose city is in Boeotia; the other was the son of king Lycaon, with his city in Arcadia. (The latter Orchomenus was destroyed by Zeus in a flood.) His name literally means 'strength of the file', from orchos, 'line' (originally of trees), 'file' and menos, 'strength', 'might'. So we can interpret his name as 'strength of the battle-line'.