Or search: archaism, archaicism
2 Syllables: SU
blushes, brushes, buses, clutches, coverage, crushes, crutches, judges, justice, justness, loveth, luscious, rushes, suffrage, touches
3 Syllables: USU
discusses, injustice

Found 17 words across 2 groupings. Skipped 1 excess word of a similar stem.