The Collaborative International Dictionary of English v.0.48:

Infeoffment \In*feoff"ment\, n. (Law)
   See Enfeoffment.
   [1913 Webster]

Bouvier's Law Dictionary, Revised 6th Ed (1856):

INFEOFFMENT, estates. The act or instrument of feoffment. (q.v.) In
Scotland it is synonymous with saisine, meaning the instrument of
possession; formerly it was synonymous with investiture, Bell's Sc. L. Dict.
h.t.