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