Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Proto-Germanic *flataz

→ English flat (derived)
→ English flat (derived)
→ English flatter (mention)
→ Old English flet (derived)
→ Old English flett (mention)
→ Danish flad (derived)
→ Middle English flet (derived)
→ French flatter (mention)
→ Old Norse flatr (inherited)
→ Norman fliatter (mention)
→ Swedish flat (derived)