comeback comely comet comedy
zeal zoo zoom zooligist zinfandel zip zap zigzag
You sure don't want much. This was all I could come up with. You can add the -er, -ed, and -ing onto the words I didn't. Be, bead, beaded, beads, beak, beaks, beam, beamed, beaming, bean, beaned,...
Zambia
icebox idealize idolize immunization immunize immobilize immortalize intellectualize internalize individualized institutionalize initialize