Lewis Short
(verb) : ob-lŏquor, locūtus, 3
* In gen., to speak against a person or thing; to interrupt a speaker; to gainsay, contradict (class.; syn. interpello); constr. with dat. or absol.
* With dat.: alicui,Plaut. Men. 1, 2, 46: vestra exspectatio, quae mihi obloqui videtur,Cic. Clu. 23, 63.
* In partic.
* To sing to, to accompany or join in singing (poet.): non avis obloquitur,Ov. P. 3, 1, 21: obloquitur numeris septem discrimina vocum,mingles the notes of his lute, accompanies on his lute,Verg. A. 6, 646.
* To blame, condemn (post-Aug.), Sen. Ep. 121, 4; Vulg. Psa. 43, 17.
* To rail at, reproach, abuse (poet.): quod nunc gannit, et obloquitur,Cat. 83, 3.
Charlton T. Lewis, Charles Short, A Latin Dictionary