Abbott-Smith Manual Greek Lexicon
κείρω (G2751)
4 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 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain