φιμός

Etymology
. According to Beekes, the similarity of the suffix with is notable, while the relation with  seems improbable.

Noun

 * 1) muzzle for dogs, calves
 * 2) gag
 * 3) noseband
 * 4) cup used as a dicebox
 * 5) tightening, constriction by means of ropes
 * 1) tightening, constriction by means of ropes