3 Syllables: SUU
authorised, authorized, codified, colonized, falsified, falsify, homicide, modified, prophesied, qualified, qualifies, qualify
4 Syllables: USUU
apologise, apologize, disqualified, disqualify, hypothesized, monopolized, personified, unauthorized
Found 20 words across 2 groupings. Skipped 1 excess word of a similar stem.