ῥάχετρον

τό
A. the beginning of the spine, acc. to Poll. 2.136 the middle; = πλευρόν, Did. ap. Phot.
II. butcher's knife or chopper, Poll. 7.25; Hsch. cites βράκετον (leg. ‐τρον) = δρέπανον.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project