field; historical unit of measurement of area, corresponding to 1/4 acre; acre
"The exact development of W erw 'field' is unclear to me. McCone 1994: 72 assumes that it is from the British pl. *arwī through raising. If it belonged to the same paradigm as the precursor of OIr. arbor, then the meaning of PCelt. *arawar was probably 'cultivated field'." (RM)
Buck, C., D. (1949). A dictionary of selected synonyms in the principal Indo–European languages: a contribution to the history of ideas. Chicago: University of Chicago Press.
Matasović, Ranko. Etymological Dictionary of Proto-Celtic. Indo-European Etymological Dictionaries Online. Edited by Alexander Lubotsky. Brill. Brill Online: http://iedo.brillonline.nl.ludwig.lub.lu.se/dictionaries/content/proto-celtic/index.html
Robert Farren, PIE culture words collection, 2017
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