The sources checked do not record Nimmy as a personal name or give it any meaning.
Affection
Cute
Gold, Black, White, Brown, Gray
Any Size
Unisex
English
N
5 Letters
From an english occupational surname, from old english bakere, "baker"
A diminutive or affectionate form of the name 'Bard', often referring to a poet or storyteller.
Recorded as a feminine given name in Danish