Or search: legs, snap, temper, stamina, endurance, huskiness, elasticity, formidability
2 Syllables: SU
blushes, clutches, Duchess, justice, Justus, loveliest, lustrous, roughest, roughness, rushes, Russia's, touches, toughest
3 Syllables: USU
Augustus, discusses, illustrious, industrious

Found 17 words across 2 groupings.