2. metaph., anything intricate, dark saying, riddle, Ar.V.20, Demetr.Eloc.153, Ath.10.448b sqq.; “γ. προβάλλειν” Antiph.74.5; “λέγειν γρίφους παρὰ πότον” Id.124.2; distd. fr. αἴνιγμα, Poll.6.19.
b. forfeit paid for failing to guess a riddle, Hsch.