2 Syllables: SU
bias, brightest, climates, crisis, cypress, Cyprus, Cyrus, direst, driest, dryness, finest, highest, Highness, ibis, iris, Isis, lias, lifeless, lightest, minus, pilots, pious, pirates, Pius, priceless, primus, prius, privates, righteous, riots, shyness, Silas, sinus, slightest, Tigris, tireless, Titus, typhus, violets, virus, widest, wisest
2 Syllables: US
3 Syllables: USU
Aquinas, arthritis, bronchitis, Darius, desirous, Elias, impious, Matthias, papyrus, Tobias, unbiased, unbiassed, unrighteous
4 Syllables: UUSU
Found 59 words across 4 groupings. Skipped 1 excess word of a similar stem.