Here's what rhymes with labyrinth.
plinth hyacinth Words that almost rhyme with labyrinth
since prince sins pins twins wins fins bins rinse tins chins mince shins wince gins thins things begins brings kings rings wings limbs lymph skins hymns sings spins evince nymph rims whims grins quince underpins brims dims gyms shims tings trims wrings convince springs strings swings clings stings violins flings slings swims hairpins javelins skims florins minims pseudonyms offsprings wellsprings fifth myth width filth pith scythe writhed writhe sixth smith therewith monolith wherewith herewith forthwith silversmith