Paraleipsis (παράλειψις passing over) is pretended omission for rhetorical effect.
τᾱ̀ς δ᾽ ἐπ᾽ Ἰλλυρίους καὶ Παίονας αὐτοῦ καὶ πρὸς Ἀρύββᾱν καὶ ὅποι τις ἂν εἴποι παραλείπω στρατείᾱς I omit his expeditions to Illyria and Paeonia and against Arybbas and many others that one might mention (lit. whithersoever one might speak of) 1.13.