Napier rhymes with:
lapier, rapier, copier, dampier, frappier, grumpier, happier, lapier, nappier, photocopier, rapier, skimpier, sloppier
Napier sounds like:
naber, napora, napper, nappier, navar, navarra, navarre, navarro, neeper, neibauer, neubauer, neuber, never, newbauer, newberry, newbery, newbury, niebauer, niebuhr, niebur, nienaber, nipper, niver, noboru, nonmember, npr, nuber, nufer, nuffer, nuhfer, number