Or search: mate, spouse, partner
2 Syllables: SU
belfry, belli, bellies, belly, Chelsea, Delhi, healthy, jellies, jelly, Kelley, Kelly, Nellie, Shelley, Shelley's, stealthy, wealthy, Wellesley
3 Syllables: USU
4 Syllables: UUSU

Found 19 words across 3 groupings. Skipped 1 excess word of a similar stem.