Nana (noun)

A term of endearment for a grandmother, especially a maternal grandmother.

Origin:

It is a colloquial term that is used in many cultures as an affectionate name for a grandmother.

Examples:

1. I'm going to visit my Nana next weekend.
2. My Nana always has cookies in the jar.
3. Nana taught me how to knit.
4. Nana always tells the best stories.
5. Nana's lap was the best place to be when I was a little girl.