Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
...
English plaint
Middle English plainte (inherited)
Old French plaint (mention)
Old French pleinte (derived)
Old French pleint (mention)
Old French plainte (mention)
Latin planctus (derived)
Latin plango (mention)

English complaint (mention)
English plaintful (suffix)
English plaintless (suffix)