commendaticius

commendātĭcĭus or -tĭus, a, um, adj. [commendatio],

serving for commendation , commendatory (very rare): litterae, letters of recommendation or introduction , Cic. Fam. 5, 5, 1; cf. Dig. 41, 1, 65; so, tabellae, Cic. Verr. 2, 4, 66, § 148; and absol. , commendaticiae, ārum, f., Aug. in Macr. S. 2, 4, 15.