Or search: phony, phoney, tartuffe, hypocrite, pretender, dissembler, dissimulator
1 Syllable: S
books, Brooks, bush, cooks, crooks, hoofs, hooks, looks, nooks, plus, push, puss, puts, roof, rooks, routes

Found 16 words across 1 groupings. Skipped 3 excess words of a similar stem.