σφήν

A. wedge, Ar. Ra. 801, A.R. 1.1204, Arist. Mech. 853a19, PCair.Zen. 759.2 (iii B.C.), etc.; used as an instrument of torture, A. Pr. 64, Plu. 2.498d, LXX 4 Ma. 8.13, al. [σφην‐ prob. from σφαν‐, cf. σφάνιον and v. sub σφηνόπους.]