Here's what rhymes with umoi.
wa moi waa law la saw raw da ha jaw ma na sa pa qua ta ya ja ka ra ga paw thaw trois bois cha faw gnaw haa maw ois sha shah baa bah hah haw nah rah yaw caw sough soh rawer draw claw fhall flaw bra inlaw spa alga chamois squaw aha blah patois craw macaw slaw pshaw straw ulna hurrah overawe pasha voila guffaw lockjaw baccarat jackdaw panama pawpaw loofah markkaa geegaw bourgeois withdraw foresaw oversaw travaux fuchsia redraw uninstall mackinaw southpaw outdraw scofflaw borzois overdraw