Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Old English ærn
Proto-Germanic *razną (inherited)
Proto-West Germanic *raʀn (inherited)
Old Norse rann (cognate)

English barn (mention)
English -ern (mention)
English southron (cognate)
English saltern (mention)
Old English bearn (affix)
Old English hof (link)
Old English -ern (mention)
Old English hæfern (affix)
Old English slæpern (compound)
Middle English -ern (mention)