Lewis & Short

quinquĕ-partītus (-pertītus), a, um, adj. [partio], divided into five parts, fivefold, quinquepartite (rare but class.): argumentatio (al. quinquepertita), Cic. Inv. 1, 34, 59.
Adv.: quinquĕpartītō, in a fivefold manner, fivefold (post-Aug.), Plin. 25, 6, 29, § 65.