"fashionable, stylish," often with a hint of contempt, 1650s, from mode (n.2) + -ish. "Very common in 17-18 c.; now somewhat arch[aic]." [OED]. Related: Modishly; modishness.
modesty
modicum
modification
modifier
modify
modish
modist
modular
modularity
modulate
modulation
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