Lewis Short
mĕdimnum | mĕdim-nus, i (noun N.m) = μέδιμνος: n., and , , m., = , a Greek measure of corn
* A Greek bushel (containing six modii): primus, secundus, tertius medimnus, Lucil. ap. Non. 213, 21; so in masc. form, Nep. Att. 2 fin.: medimnum tritici seritur,Cic. Verr. 2, 3, 47, § 112: ut quot jugera sunt sata, totidem medimna decumae debeantur,id. ib. 2, 3, 47, § 113; in gen. plur.: medimnūm,id. ib.; so id. ib. 2, 3, 37, § 84; 2, 3, 39, § 90; Varr. ap. Non. 495, 32 (cf. Neue, Formenl. 1, p. 107).
Charlton T. Lewis, Charles Short, A Latin Dictionary