Demíssio, ônis, Verbal. Abashment: lacke of courage: falsenesse of heart. vt, Infractio quædam animi, & demissio. Cicero. A falsenesse of heart and feeble courage.
Lewis and Short: Latin dictionary
dēmissĭo, ōnis, f. [id.], a letting down, sinking, lowering (very rare). I. Prop.: storiarum, Caes. B. C. 2, 9, 5: barbae,
a letting grow
, Macr. S. 1, 22, 4.—In plur.: clipei aenei demissiones, Vitr. 5, 10 fin.— II.Trop.A. (Acc. to demissus, no. II. A.): animi, dejection, Cic. Tusc. 3, 7, 14. — B. In medic. lang., an abatement, mitigation (opp. accessio), Coel. Aur. Acut. 1, 4.