Einz qu ’hum alast un sul arpent de camp
(Before one (he) went a single acre of ground)
evidently means about a furlong, just as in Iliad x., ‘when he was as far off as the length of the furrow made by mules’ has the same meaning.
Similarly the sesteirado of Provence was used as an itinerary measure, probably of 100 cano = about 220 yards, the same as the centenié.
The sesteirado, the rood of Southern France, corresponding to the boisselée, the bushel-land of Mid-France, was, like the latter, originally a seed-unit, the extent sown with a sestié of seed-corn. Its extent is 0·4 acre, = our rood. Now if this were square, each side would measure 40 yards, a length too small for itinerary measure. Neither Northern nor Southern France had any official itinerary measure under the league, so field-units were necessarily used; in the north the arpent-length, in the south the sesteirado-length; both corresponding to our rood-length, furrow-length or furlong. There seems little doubt that the centenié, the popular itinerary measure of the south, 100 cano or fathoms, was the same as the sesteirado-length. And the sesteirado being 400 square cano, it seems that its dimensions were 100 × 4 cano. It was moreover the rood, or quarter of the greater land-unit, the saumado, the ‘seam’ of land, which would thus be 100 × 16 cano just as our rood was 40 × 1 rods, and our acre 40 × 4 rods. Ten sesteirado-lengths, 10 centenié, made the milo, a mile of 1000 local fathoms, one-third of the league of Southern France.
Yardland.—L. quatrona terræ, virgata. Fr. bouvée. Bovate, Oxgang. About 30 acres more or less, including pasture and perhaps some woodland. Before the Norman conquest the gebur-geriht (boor’s right) was 6 sheep and 7 acres arable on his yard-land. This corresponds roughly to the German hufe = about 20 acres, and to the Netherlands hoeve, the unit of small holding. Almost everywhere and always, 6 or 7 acres of arable have been all that the boor’s yoke of oxen can till. There was other work for the oxen besides ploughing, and at least five ploughings were usually necessary for proper tillage; then there was cartage and feudal duties in consideration of the small rent.
In the Roll of Battel Abbey (tenth and eleventh centuries) the perch is 16 feet; the acre is 40 perches long and 4 broad and pays a penny a year; 3 shillings for the virgate or wist, the price of which was about 20 shillings. In this case 8 virgates made a hide, but this ‘eighth’ is exceptional, for the term ‘virgate’ brought a fourth sense to the virga = yard series of words, giving rise to the term yard-land as a quarter of the plough-land or hide. As the vergée in France (sometimes ambiguously called verge, as it has been seen that Recorde spoke of ‘a rodde of lande which some call a roode’) and the rood in England were a quarter-acre, and as this quarter-acre was sometimes called a ‘yard of land,’ so virga-verge-yard acquired the general sense of ‘quarter’—either of an acre or of a ploughland or carucate. Thus in ‘Quant une homme est feffe dune verge de terre et dun autre de un carue du terre’ (Statute of Wards, 1300), the term ‘verge de terre’ means not a rod, a verge, but a yardland or virgate.
‘Farthing’ or ‘ferling’ as a quarter was used in the same double sense: a quarter-acre or a quarter-hide, indeed, as will presently be seen, a quarter-virgate.
Acreme.—This old law-term for 10 acres of land points to a tradition that our original unit of land-measurement was a rood or furlong square, that is 40 × 40 rods: it was called a Ferlingata or Ferdelh.
A document temp. Edw. II describes the virgate (of which 4 made a hide; 5 hides being a knight’s fee) as of 4 (square) furlongs, each of 10 acres.