Here's what rhymes with poterion.
barbarian carrion ovarian clarion agrarian librarian sectarian libertarian vegetarian sanitarian authoritarian egalitarian proletarian totalitarian antiquarian trinitarian vulgarian cnidarian utilitarian veterinarian octogenarian nonsectarian centenarian seminarian nonagenarian humanitarian disciplinarian parliamentarian communitarian latitudinarian septuagenarian valetudinarian sexagenarian Words that almost rhyme with poterion
barium chameleon honorarium aquarium sanitarium planetarium vivarium nobelium ferryman ferrymen lesbian pedestrian thespian vestrymen vestryman equestrian