impĕrātus — Lewis & Short
impĕrātus (inp-), ūs, m.impero,
I a command, order (post-Aug. and very rare), Ambros. de Fuga Saec. 2, 8:
ACILII GLABRIONIS IMPERATV,Inscr. Orell. 1525:
imperatu Gratiani,Amm. 31, 7, 4.