Lewis Short
commĭnātĭo (noun F) : id.
* A threatening, menacing (rare, but in good prose): orationis tamquam armorum, * Cic. de Or. 3, 54, 206 (cf. Quint. 9, 1, 33): taurorum,Plin. 8, 45, 70, § 181; Dig. 26, 7, 7, § 7.—In plur.: imperiosae, Tiro ap. Gell. 7, 3, 13: Hannibalis,Liv. 26, 8, 3: Tiberii,Suet. Tib. 37.
Charlton T. Lewis, Charles Short, A Latin Dictionary