The name Enu is a boy's name meaning "fifth born child".

3 Letter Boy Names

Names Ending in U for Boys

Traditionally the name for the fifth-born child, however, we like it no matter where the child is in the birth order. 

The name Enu is a girl's name meaning "fifth born child".

Even if you're not planning on having five kids, Enu makes a cute name for a son or daughter.