←
Old English æcer (derived)←
English acre (borrowed)←
Middle English acre (derived)←
Middle English aker (mention)←
Proto-Germanic *akraz (derived)←
Proto-West Germanic *ak(k)r (derived)←
Proto-Indo-European *h₂éǵros (derived)←
Proto-Indo-European *h₂eǵ- (mention)←
Norwegian Nynorsk åker (doublet)