Dictionary entry

κείρω

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

κείρω,

[in LXX chiefly for גּזז, Is 53:7, al.;]

to cut short the hair, shear: a sheep, Ac 8:32 (Is 53:7). Mid., to have one's hair cut off, be shorn: absol., I Co 11:6; τ. κεφαλήν, Ac 18:18.†