ἐπίπεμπτος
From LSJ
English (LSJ)
ον, Math., = 1+1/5, Nicom.Ar.1.22, etc. 2. of loans bearing interest at the rate of 1/5 of the principal, i.e.20 per cent., ναυτικὸν ἐ. X.Vect.3.9. II. = πέμπτος, Eup.65, LXX Le.5.16, al.; τοὐπίπεμπτον one-fifth of the votes in a trial, Ar.Fr.201.