/sahr"jeuhn tee/ , n. Medieval Eng. Law.
a form of land tenure in which a tenant holding of the king rendered him exclusive services in a status below that of a knight.
Also, sergeanty . Cf. grand serjeanty, petit serjeanty .
[ 1300-50; ME sergeantie, serjantie serjantie. See SERGEANT, -Y 3 ]