paccosakkati : [pati + ava + sakk + a] retreats; withdraws.

A.P. Buddhadatta Mahathera, Concise Pali-English and English-Pali Dictionary [available as digital version from Metta Net, Sri Lanka]

Paccosakkati [paṭi+osakkati which is either ava+sakkati (of ṣvaṣk Geiger, P.Gr. § 282 or sṛp Trenckner Notes 60), or apa+sakkati] to withdraw, retreat, go away again D i.230; J i.383; Mhvs 25, 84.

Pali-English Dictionary, TW Rhys Davids, William Stede,