Cracking into the history of Texas pecans
The word “pecan” has its origins in Native American culture. It is believed to have been derived from the Algonquian word “paccan,” which roughly translates to “nut that requires a stone to crack.”
[M]any indigenous people used the pecan to make a nutritious fermented nut milk drink called Powcohicora, which is where the term hickory comes from. Pecan trees are part of the hickory family.
https://fortworthreport.org/2023/12/13/dish-with-deah-cracking-into-the-history-of-texas-pecans/