Liddell–Scott–Jones: τρῐᾱκοντα-ετηρίς

τρῐᾱκοντα-ετηρίς,ίδος,ἡ,

A. period of thirty yearsorfestival recurring every thirty years, OGI 90.2 (Rosetta,ii B. C.): in full, τ. ἑορτή

D.C. 62.26

; cf.τριακοντετηρίς.