cas, cask, cass, cast, caste, kass, kast

calor, cammer, cancer, canner, capper, casher, casner, caspar, casper, cassie, casso, caster, castor, catcher, cather, couser, cursor, gasser, kacer, kachur, kadar, kammer, kanner, kapper, kapur, kasey, kasner, kaspar, kasper, kassa, kassler, kassner, kaster, katcher, katzer, keiser, keysor, kieser, kisser, kosar, kysar, kyser, kysor, lasser, massar, masser, masur, nassar, nasser, passer, sasser, vassar, vasser, vasseur, yasser, kassar