I am Cree and the cree word for grandfather is Mushom (pronounced Mooshoom).
I don't know how to spell it but you say it as... "Gish Um" hope that helps my grandfather was Cree and I had asked him once how to say grandfather and that was his reply
How to say Good Morning in Cree
In Cree, you can say "Tansi, niiya nananaskomot."
In Cree, you can say "miyo kisikaw" to express congratulations.
In Swampy Cree, you can say "miyo kisikaw" to say goodbye.
kîhipa meaning hurry in cree
Merry Christmas in Cree
In Cree, you can say "Kiya pimatisiwin" to mean "Have a good day."
The Cree word for death is: "nipoowin"
Hfg
In Cree, you can say "nitanis, acosin" to say goodbye and good luck to someone.
In Cree language, the word for woman is "iskwew".