grandmother

noun

1. A mother of someone's parent.

   “[…] man may admit that his grandfathers and grandmothers were mon[keys a]nd monkeyesses if he want^([sic]) to; that is his privilege.”

   “"It's a nightingale floor," our grandmother told us. "It warns us of thieves in the night."”

   ““Not only is it showing that the brain of grandmothers is activated with grandparenting, it also shows that the parental brain areas are activated late in life, or perhaps are always activated. Once a mother, always a mother,” Pawluski said.”

   “Viral YouTuber and grandmother Shirley Curry, better known as ‘Skyrim Grandma’ is finally playing another Bethesda RPG after nine years.”

2. A female ancestor or progenitor.
3. In Amazonian shamanism and related contexts, a reverential name for the ayahuasca vine or brew, symbolizing its role as a wise, guiding spirit.

   “"Enter ayahuasca, the mystical grandmother of the psychedelic family, a beacon of profound spiritual experiences"”