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