Here's what rhymes with excern.
fern turn learn burn stern tern yearn churn quern spurn concern discern adjourn sauterne return overturn upturn nocturne taciturn unconcern subaltern Words that almost rhyme with excern
firm therm term affirm germ sperm worm terme berm perm corm confirm infirm squirm reaffirm isotherm endosperm reconfirm wheatgerm angiosperm gymnosperm