Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Middle English eiȝtetene
Old English eahtatēne (inherited)
Old English eahtatīene (mention)
Middle English eighte (affix)
Middle English -tene (affix)
Proto-Germanic *ahtōutehun (inherited)

English eighteen (inherited)
Yola ayghteen (inherited)