babydom

/ˈbeɪbidəm/

Etymology

From baby + -dom.

noun

The stage of life when a child is considered a baby.“Then again, Mama thought I would be marrying Zeb— best friend since babydom—someday, which showed how much she knew.”
The world or realm of babies.“I wish I could read their mothers a lecture, which would ring in their ears until there was a complete reform in babydom.”