Demurring rhymes with:
blurring, concurring, conferring, deferring, deterring, hering, heuring, incurring, inferring, nonrecurring, occuring, occurring, preferring, purring, recurring, refering, referring, schering, scheuring, schuring, slurring, spurring, stirring, transfering, transferring, whirring
Demurring sounds like:
demarinis, domineering, downrange