ἀρτιοταγής

ές
A. occupying the even places in a series, Iamb. in Nic. p.59 P., al.; prob. for ‐παγής in Nicom. Harm. 11.3.
II. even in number, Id. Ar. 2.24.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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