From The Collaborative International Dictionary of English v.0.48 :
Mensurate \Men"su*rate\, v. t. [L. mensuratus, p. p. of
mensurare. See Measure, v.]
To measure. [Obs.]
[1913 Webster]
From WordNet (r) 3.0 (2006) :
mensurate
v 1: determine the measurements of something or somebody, take
measurements of; "Measure the length of the wall" [syn:
measure, mensurate, measure out]