Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English crass
English grease (doublet)
Middle English cras (inherited)
Middle English craas (mention)
Old French cras (derived)
Latin crassus (derived)

English grease (doublet)
English crassness (suffix)
English crassly (suffix)
German krass (cognate)
Dutch kras (cognate)