Liddell–Scott–Jones: ἐπέμ-βᾰσις

ἐπέμ-βᾰσις,εως,ἡ,

A. attack, advance,

D.H. 3.19 (pl.).

2. pl.,steps,

τῶν κρηπίδων

IG 22.1671.10

, 13

(iv B. C.).

II. Astrol.,commencement of χρονοκρατορία,

Man. 5.80 , Ptol. Tetr. 141 , al., Paul.Al. R. 3 .