ἀρτίστομος

ον, Adv.
A. speaking in good idiom, or with precision, Plu. Cor. 38, Suid. Adv. ‐μως Poll. 6.150.
II. with a good mouth or opening, κόλπος Str. 5.4.5; λιμήν Id. 17.1.6.
III. ἀ. βέλεα evenly tipped, i. e. not sharp or jagged (πανταχόθεν ὁμαλά Gal. 19), Hp. VC 11; so ἀ. ξὸΐς plain chisel (not toothed), IG 7.3073.148 (Lebad.).
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project