purpresture,
n. [Probably corrupted (see
Prest) fr. OF.
pourprisure, fr.
pourprendre: cf. LL.
purprestura. Cf.
Purprise.].
Wrongful encroachment upon another's property; esp., any encroachment upon, or inclosure of, that which should be common or public, as highways, rivers, harbors, forts, etc. [1913 Webster]