Modesitt rhymes with:
adsit, babysit, basset, bassett, bisset, bissett, blancett, blansett, blissett, crossett, dorset, dorsett, dossett, elicit, fassett, faucett, fausett, fawcett, fossett, gassett, gossett, gressett, grissett, hassett, hogsett, lancit, lipsett, massett, neponset, poinsett, russet, russett, solicit, tacit, whitsett, whitsitt, winsett
Modesitt sounds like:
matched, matchett, matsuda, matsushita, mediaset, medicaid, medicate, medicated, mendacity, metagogued, methodist, mideast, midget, midgett, midgette, midsized, midst, midwest, mindset, mitigate, mitigated, modest, modesta, modestia, modesto, modesty, modisette, monteagudo, mudgett