πενταετηρίς

English (LSJ)

ίδος, ἡ,

   A = πεντετηρίς I, Lycurg.102, Arist.Pol.1308b1, Tab.Heracl.1.105, etc.; = Lat. lustrum, Plb.6.13.3; = quinquennalia, D.C.54.19.    II as Adj. coming every fourth year, π. ἑορτά Pi.O.10(11).57, N.11.27 ; alone in same sense, Id.O.3.21, PMich.Zen.46.8 (iii B. C.), etc.