Or search: trachea, windpipe
2 Syllables: SU
boxes, broadest, cottage, Doris, drawbridge, Hollis, Maurice, octave, ostrich, plaudits, polish, profits, Psalmist, Romish, Scottish, sonnets, sophist, stoppage, tallest, topics, tropics, Wallace, Wallis
3 Syllables: USU
abolish, admonish, astonish, demolish, deposits, impoverish, narcotics, synopsis, unpolished
4 Syllables: UUSU
economics, electronics
5 Syllables: UUUSU
antibiotics

Found 35 words across 4 groupings. Skipped 6 excess words of a similar stem.