lynchet
A bank of earth that slowly builds up on the lower slope of a ploughed field; a feature of ancient field systems.
A stretch of a hundred odd acres, in one patch, on the highest ground of the farm, rising above stony lanchets or lynchets - the outcrop of siliceous veins in the chalk formation.
Where it comes from
Apparently lynch (“variant of linch”) + -et, the first element derived from Old English hlinc (“a hill”).
Adapted from the Wiktionary entry lynchet (CC BY-SA 4.0).