Or search: mulct, forfeit, penance, requital, detention, correction, forfeiture, amercement, retribution, castigation, disadvantage, penalisation, penalization
3 Syllables: SUU
centrally, generally, heraldry, mentally, penalties, revelry, specialty
4 Syllables: USUU
essentially, eventually, potentially
4 Syllables: UUSU
incidentally
5 Syllables: UUSUU
accidentally, confidentially, fundamentally, providentially, unintentionally
6 Syllables: UUUSUU
experimentally

Found 17 words across 5 groupings.