Liddell–Scott–Jones: ἑβδομ-άς

ἑβδομ-άς,άδος,ἡ,

A. the number seven, Ph. 1.21 , Dam. Pr. 264 , etc.

II. a number of seven,

APl. 4.131 (Antip.(?)).

2. period of seven days, week, Hp. Aph. 2.24 , LXX Ex. 34.22 , etc.

b. period of seven years, Sol. 27.7 , Arist. Pol. 1336b40 , Placit. 4.11.4 ; ἐτῶν ἑ.

J. AJ 3.12.3

.