babyhood
/ˈbeɪbiˌhʊd/Definitions
1. noun
The state or period of being a baby; infancy
“The mother cherished her baby’s babyhood and the memories they made during that time.”
2. noun
The quality or characteristics associated with being a baby; naivety or innocence
“The child’s babyhood shone through in her wide-eyed wonder at the new toy.”