Dictionary Definition :
Definition[1]
:
Opapātin (adj.) = opapātika, in phrase opapātiyā (for opapātiniyā?) iddhiyā at S v.282 (so read for T. opapāti ha?) is doubtful reading & perhaps best to be omitted altogether.
Source
:
Pali-English Dictionary, TW Rhys Davids, William Stede,