Geez

kāhən - priest, clergyman (CDG 278)

the word is likely borrowed from Aramaic

PCS
*kāhin- - priest, wizard (Kogan 2015: 213)
In MSA, note Mhr. káthən ‘to pretend to something in order to attain one’s object,’ kōhən ‘cunning’ and Jib. kɔ́thən ‘to be cunning, to pretend to get what one wants’, perhaps autochthonous as no corresponding meanings seem to be attested in (Classical) Arabic. (Kogan 2015: 213)