Here's what rhymes with nienn.
then when men ten den pen hen ben ken sen yen fn pn wen wenn chen denn fen jen ren wren again againe glen amen cayenne lawmen oilmen penmen conmen comedienne handymen anchormen pitchmen middlemen minutemen weathermen businessmen councilmen signalmen tragedienne patrolmen equestrienne Words that almost rhyme with nienn
them pm gem hem femme heme mem rem eadem feng sheng stem hmm condemn ppm rpm morpheme diadem blaspheme cairn moderne relearn demesne ramequin fluorescein