Or search: lend, bestow, convey, modify, tinsel, instill, bequeath, transmit, transfuse, retransmit
2 Syllables: SU
Arctic, Bartlett, carted, charted, darted, garlic, guarded, hardship, hearted, Margaret, Margaret's, market, parted, started, yardstick
3 Syllables: USU
Antarctic, bombarded, departed, discarded, lethargic, regarded, retarded, uncharted, unguarded
4 Syllables: UUSU
disregarded

Found 25 words across 3 groupings. Skipped 2 excess words of a similar stem.