Nankervis rhymes with:
alvis, avis, bavis, bevis, chavis, chavis', chevis, chevys, clovis, divis, dravis, elvis, elvis', foodservice, havis, hovis, jervis, kendavis, kravis, lavis, levis, mavis, mervis, navis, nevis, orvis, pendarvis, purvis, reavis, revis, sarvis, servis, serviss, silvis, tavis, tevis, travis