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

Words that almost rhyme with interfirm

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