in-dēbĭtus

I. that is not owed, not due (poet. and post-class.): non indebita posco, Verg. A. 6, 66: praemia, Ov. H. 16, 9. — Subst.: indēbĭtum, i, n., that which is not due, the performance or payment of which is not due: solvere, Dig. 12, 6, 65; Paul. Sent. 4, 3, 4; Gai. Inst. 3, 91 al. —Hence, adv.: indēbĭtē and indēbĭtō, without just cause, unduly (post-class.).

(a). Form indebite, Dig. 22, 3, 5, § 4.—

(b). Form indebito, Dig. 12, 6, 25 fin.