Webster's Revised Unabridged Dictionary · 1913

Nanny

Nanny , noun

1.
A diminutive of Ann or Anne, the proper name.
Collocations (1)
Nanny goat , a female goat. [Colloquial]

Nanny (nan"ny) , noun

1.
a caretaker for a child; a child's nurse; a nursemaid.
2.
Grandmother; -- a child's word, used especially as a form of address. See also nana.

Also: Nannie