Infancy (noun)

The state or period of being a baby or very young child; the state or period of something's early development.

Origin:

From latin infans ("unable to speak"), from in- ("not") + fans ("speakin.g")

Examples:

1. The company is still in its infancy and has yet to establish itself.
2. The idea is still in its infancy, but it has a lot of potential.
3. The country's economy is still in its infancy.
4. The field of artificial intelligence is in its infancy.
5. In his infancy he was a fussy baby and cried a lot.