κεροίαξ

ακος, ὁ
A. ropes belonging to the yard-arm, Luc. Nav. 4; sine expl., Suid.; glossed κάροια (v.l. κάρυα), i.e. blocks, and κρίκοι, Sch.Luc.l.c.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project