Nimirum, pen, pro. Aduerb. confirmandi. Cic.Iwis: surely: in faith: certainely. Nimirum, ad responsionem aliquando adhibetur.Quintil. Vter melior dicetur orator? nimirum qui homo quoque melior. Vndoubtedly he that is also the better man. Nimirum, pro Scilicet.Cic. Quam ad diem proscriptiones fiant, nimirum ad Calend. Iunias. That is to saye, at the Calends of Iune.Itaque nimirum hoc illud est, quod Cæsar scribit, &c. Cice. Therefore surely.Hoc nimirum est illud, quod de Socrate accepimus, esse diuinum quiddam, &c.Cic.Certainely this is it, that, &c.
Lewis and Short: Latin dictionary
nīmīrum, adv. [ni, i. q. ne mirum, v. ni, I.; lit. not wonderful; cf., less strong than mirum ni; v. ni, III. A. b; hence], to introduce an assertion as indisputable, without doubt, doubtless, indisputably, certainly, surely, truly: nimirum homines frigent,
are certainly received coolly
, Ter. Eun. 2, 2, 37: nimirum Themistocles est auctor adhibendus, Cic. Off. 2, 20, 71: non parva res, sed nimirum omnium maxima, id. Mur. 22, 45: et nimirum is princeps ex Latinis, id. Brut. 21, 82: is est nimirum Soter, qui salutem dedit, id. Verr. 2, 2, 63, 154; id. Leg. 2, 1, 3; id. de Or. 1, 4, 16; id. Or. 23, 75: non omnia nimirum eidem di dedere,
truly
, Liv. 22, 51: nimirum haec illa Charybdis, etc., Verg. A. 3, 558: cui placet alterius sua nimirum est odio sors,
of course
, Hor. Ep. 1, 14, 11.—After a question: sed quid id ad rem? nimirum, inquit, in eo causa consistit, Cic. Quint. 25, 79. —II. Freq. in an ironical sense, doubtless, to be sure, forsooth: aperienda nimirum nocte janua fuit, Liv. 40, 9: uni nimirum tibi recte semper erunt res, Hor. S. 2, 2, 106; 2, 3, 120; id. Ep. 1, 9, 1; 1, 15, 42; Juv. 2, 104; Tac. H. 1, 33: nimirum summi ducis est occidere Galbam, id. A. 2, 82.