firm therm term affirm germ sperm worm infirm terme berm perm reaffirm squirm corm confirm isotherm reconfirm endosperm angiosperm gymnosperm wheatgerm

Words that almost rhyme with polytherm

fern return turn learn burn stern discern tern yearn churn spurn adjourn quern taciturn sauterne concern overturn upturn subaltern unconcern nocturne