Here's what rhymes with polycythe.
scythe myth pith smith writhed writhe forthwith therewith herewith wherewith monolith silversmith Words that almost rhyme with polycythe
his this fish viz sieve hiss sis hes fizz shes with give wish miss bis dish kiss stiff dis def diss sniff pis piss relive remiss skiff swish whiff biz jellyfish kith riff rive whiz tiff forgive abyss bliss cliff amiss quiz dismiss outlive premiss reminisce cuttlefish midriff chandeliers hieroglyph corroborative fifth filth sixth width plinth labyrinth hyacinth