Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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English twentieth
Old English twēntigoþa (inherited)
English twenty (suffix)
English eth (suffix)
Middle English twentithe (inherited)
Middle English twentiþe (mention)

English twentiethly (suffix)
Cimbrian sbòanskhte (cognate)
Pennsylvania German zwansichscht (cognate)