Compound of ibu +‎ baptis.

• IPA^(key): /ˌi.bu ˈbap.tis/, [ˌi.bu ˈbap̚.t̪ɪs]

ibu baptis (plural ibu-ibu baptis)

1. (Christianity) godmother

   Synonym: ibu permandian

• “ibu baptis”, in Kamus Besar Bahasa Indonesia [Great Dictionary of the Indonesian Language] (in Indonesian), Jakarta: Agency for Language Development and Cultivation – Ministry of Education, Culture, Research, and Technology of the Republic of Indonesia, 2016