κέστρα

A. hammer, S. Fr. 20.
2. bolt hammered in to pack τόνοι in a torsion-engine, Ph. Bel. 61.14, Hero Bel. 108.12.
II. a fish, = σφύραινα, Ar. Nu. 339, Stratt. 28, Antiph. 97, Speus. ap. Ath. 7.323b.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project