i call my paternal grandparents as Amah (father in Tausug) and Lami (means Lola Mommy)
In my father's side, I called my grandmother "Mama Luz" and referred to my grandfather "Papa Titing"
In my mother's side, I called my grandmother "Lola Nating" and my grandfather "Lolo Ciano"

Linkback:
https://tubagbohol.mikeligalig.com/index.php?topic=73062.0