nachdrucksvoll
From LSJ
προγράψαντες οὖν τά τε θεωρήματα καὶ τὰ ἐπιτάγματα τὰ χρεῖαν ἔχοντα εἰς τὰς ἀποδείξιας αὐτῶν μετὰ ταῦτα γραψοῦμές τοι τὰ προκείμενα → having therefore written at the beginning the theorems and the postulates that are necessary for their proofs, we will then write out for you the propositions
nachdrucksvoll, gravis. – nervosus (mit Kraft im Ausdruck). – nachdrucksvollere Wörter, verba plus efficientia. – Adv.graviter; cum vi; nervose (alle drei z.B. dicere).