The Austronesian Comparative Dictionary

Loans: incantation

Borrowing, ultimately from language__Javanese, but with likely mediation through language__Malay in the case of language__Tagalog (pa)ŋadyiʔ. Dempwolff (1934-38) also included language__Sa'a jäsi-kana'a cycle of songs dealing with the herœs of Old Malau, containing reputedly good teachinǵ, and language__Fijian kaci 'call, invite', but these are far more convincingly treated as chance similarities.

WMP
Tagalog ŋadyiʔ prayer
paŋadyiʔ prayer
Toba Batak maŋ-aji to read
aji poison, magical charm
Malay aji a secret magical formula (Java)
Ngaju Dayak kaji learning, study
Old Javanese aji holy writ, "the scriptures", sacred text (containing e.g. rules of conduct for a brahman; instructions on administration, politics, the practice of arms, the writing of poetry, etc.); sacred or magically powerful formula
Javanese aji incantation, magic spell
Balinese aji mantra, religious formula (allegedly in Sanskrit)