The name Nalby has no documented meaning in the sources checked.
Joy
Cute
Brown, Black, Gold, White
Any Size
Unisex
English
N
5 Letters
English gally, a plural form of the noun gallie
Recorded as a given name in modern English, where it is rare and feminine
Diminutive of Nicole; also a Punjabi name meaning "little one".
A diminutive of Alfred