←
Proto-Germanic *akraz (inherited)
←
Proto-West Germanic *ak(k)r (inherited)
←
Proto-Indo-European *h₂éǵros (inherited)
→
English acre (inherited)
→
Middle English aker (inherited)
→
Ancient Greek ἀγρός (cognate)
→
Icelandic akur (cognate)
→
Norwegian Bokmål acre (derived)
→
Norwegian Nynorsk acre (derived)
→
Old Norse akr (cognate)
→
Portuguese acre (derived)
→
Sanskrit अज्र (cognate)