Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
interpunctus, a, um, P. a., v. interpungo fin.
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.