băsĭlīum: ii, n. βασίλειον,I a royal or princely ornament, Inscr. Orell. 2510; cf. Inscr. Maff. Mus. Veron. 293, 2.
băsĭlīum (-ēum), īī, n. (βασίλειον), diadème, couronne royale : CIL 2, 3386.