Is the word Nei Celtic for grandmother?

While "nei" is a common word in Celtic languages, it doesn't mean grandmother. Here's why:

* "Nei" in Irish: In Irish, "nei" means "niece".

* "Nei" in Welsh: "Nei" in Welsh means "aunt" or "niece", depending on the context.

* "Nei" in Scottish Gaelic: In Scottish Gaelic, "nei" is not a common word.

Grandmother in Celtic Languages:

* Irish: "Máthair mhór" (mother great)

* Welsh: "Mam-gu" (mother-old)

* Scottish Gaelic: "Seanair" (grandparent, can be used for both grandmother and grandfather)

It's important to be precise when discussing Celtic languages as they can differ significantly.