Lewis Short
(adverb) : sermōcĭnor, ātus, 1
* V. dep. n. [sermo].
* To talk with any one, to parley, converse, commune, discourse about any thing (rare but class.; syn. colloquor): consuetudo sermocinandi,Cic. Inv. 2, 17, 54: cum aliquo,Cic. Verr. 2, 1, 52, § 138: psittaci etiam sermocinantes,Plin. 10, 41, 58, § 117.—Act. collat. form sermōcĭno, Isid. Orig. 1, 39, 2.
* In partic. (acc. to sermo, I. B. 1.), to hold a literary conversation, to dispute, discuss: exquisitius sermocinari, etc.,Suet. Tib. 56: pluria forte quis dixit sermocinans vir apprime doctus,Gell. 5, 21, 1.— Hence, * sermōcĭnanter, , in discourse or conversation: horas extrahere,Sid. Ep. 8, 6 med.
Charlton T. Lewis, Charles Short, A Latin Dictionary