co-parenthood, a fictive kinship within the Catholic church (see Molina)
(at root, a loanword from Spanish)
Alonso de Molina:
compadreyotl. compadrazgo. Alonso de Molina, Vocabulario en lengua castellana y mexicana y mexicana y castellana, 1571, part 2, Nahuatl to Spanish, f. 24r. col. 2. Thanks to Joe Campbell for providing the transcription.