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 æcer
Proto-Germanic *akraz (inherited)
Proto-West Germanic *ak(k)r (inherited)
Proto-Indo-European *h₂éǵros (inherited)

English acre (inherited)
Old English æcermann (compound)
Old English æcerceorl (affix)
Old English æcerweorc (compound)
Middle English aker (inherited)
French acre (derived)
Ancient Greek ἀγρός (cognate)
Hindi एकड़ (derived)
Icelandic akur (cognate)
Latin ager (cognate)
Norwegian Bokmål acre (derived)
Norwegian Nynorsk acre (derived)
Old Norse akr (cognate)
Portuguese acre (derived)
Sanskrit अज्र (cognate)
Scots acre (inherited)
Yola aager (inherited)