How can I find the Blackfoot Native American symbol for grandchild?

Question:

How can I find the Blackfoot Native American symbol for grandchild?

My family geneaology is part of the Blackfoot Tribe. I would like to honor my grandchild with a tattoo of the symbol which means "grandchild." I can't seem to find what I am looking for, if it exists.

Best Answer - Chosen by Asker: I'm not familiar with anything that symbolizes a grandchild, however the Blackfoot aren't a tribe I've studied specifically. This may or may not help in your search but according to the many language vocabulary software I have for a writing reference, the words in the Blackfoot language are:
grandchild: issoko's
grandson: issohko
granddaughter: issotan