Acre

Acre [fr. aypos, Gr.; ager, Lat.; acker, Germ.], a measure of land. The extent of the acre was first defined by statute in the 33 Edw. I., according to which an acre contains 160 square perches, the then perch being 5' yards. See Blount's Law Dict. The imperial or standard English acre contains 4 roods, each rood 40 poles or perches, each pole 272' square feet, and consequently each acre = 43,560 square feet or 4,840 square yards. See (English) Weights and Measures Act, 1878. The French acre, arpent, contains 1' English acres, or 54,450 square English feet. The Welsh acre contains commonly 2 English acres. The Irish acre is equal to 7,840 square yards; the Scots to 6,150-2/5 square yards.