Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
ad-mētĭor, mensus, 4, v. dep., to measure out to: vinum emptoribus, Cato, R. R. 154: frumentum alicui, Cic. Verr. 2, 3, 31; so Suet. Aug. 41; Curt. 8, 12.
Pass.: quod (sc. vinum) admensum erit, measured out, Cato, R. R. 148.