Lewis Short
(v. a.P. a.) : inter-pungo, punxi, punctum, 3, v. a.
* To place points between words, to point, punctuate: cum scribimus, interpungere consuevimus,Sen. Ep. 40.—Hence, inter-punctus, a, um, P. a., well divided: narratio distincta personis et interpuncta sermonibus,Cic. de Or. 2, 80, 328: clausula,id. ib. 3, 44, 173: intervalla,id. Or. 16, 53.— As subst.: interpuncta verborum,divisions by punctuation,id. de Or. 3, 46, 181.
Charlton T. Lewis, Charles Short, A Latin Dictionary