paccosakkati

to withdraw, retreat, go away again DN.i.230; Ja.i.383; Mhvs.25, Mhvs.84.

paṭi + osakkati which is either ava + sakkati (of ṣvaṣk Geiger,

Pali Grammar

§ 28#2 or sṛp Trenckner Notes 60) or apa + sakkati