ativattati : [ati + vat + a] passes over; goes beyond.

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

Ativattati [ati + vṛt, Sk. ativartate] to pass, pass over, go beyond; to overcome, get over; conquer Vin ii.237 (samuddo velaŋ nɔ); S ii.92 (saŋsāraŋ); iv.158 (id.) It 9 (saŋsāraŋ) = A ii.10 = Nd2 172a; Th 1, 412; J i.58, 280; iv.134; vi.113, 114; PvA 276. -- pp. ativatta (q. v.).

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