Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
octōgēni, ae, a
(
- I. gen. plur. octogenūm, Front. Aquaed. 58), num. distr. adj. [octo], eighty each: data ex praedā militibus aeris octogeni bini, Liv. 10, 30.
- II. In gen., eighty: fetus, Plin. 9, 51, 75, § 165.