adjective/i.dø/
grotesque; vile; hideous
From Middle French hideux, from Old French hideus, hydus, hisdos (“that which inspires terror”), from hide, hede, hisda (“horror, fear”), from Proto-West Germanic *agisiþu (“horror, terror”), from Proto-West Germanic *agisōn (“to frighten, terrorise”), from Proto-Germanic *agaz (“terror, fear”). Alternative etymology cites possible derivation from Latin hispidosus (“rugged”), from hispidus (“rough, bristly”), yet the semantic evolution is more difficult to trace.