Here's what rhymes with ordau.
bo doe dough po toe tow beau jo beaux cho dau doh no so know go though although low show co blow pro row tho fo foe ho lo mo ro wo woe yo bio ceux faut goe hoe ko sew soe vo mow noe roe sho tuo yeux zo bro rho stow trow whoa below ago flow grow radio slow snow throw glow plateau quo audio fro chateau crow thro forego forgo propos uno dicho floe rodeo topos chateaux dunno plateaux throe chapeau kapok oleo sloe tarot turbot foreknow gateau kayo chapeaux gateaux pekoe borzoi schmo resew schmoe ratio bestow folio hello patio portico nouveau polio tableau aglow aliquot apropos outgrow tableaux trousseau deathblow regrow bandeau matzoh fatso trousseaux romeo embryo studio undergo buffalo indigo stereo calico dynamo vertigo cameo domino escrow medico mistletoe siglo spatio oregano adagio piccolo undertow pompano microdot tallyho overthrow portfolio overflow bungalow politico presidio afterglow overgrow archipelago pistachio mustachio moustachio impresario braggadocio pianissimo generalissimo