Or search: sawm, fasting, celibacy, sobriety, abstention, inhibition, temperance, suppression, teetotalism, teetotaling
2 Syllables: SU
platinum
3 Syllables: SUU
abdomen, Absalom, adamant, ambulance, Atkinson, Magdalen, maximum, sacrament

Found 9 words across 2 groupings. Skipped 1 excess word of a similar stem.