infancy

early

The technology was still in its early infancy when most people didn't understand how to use it.

survive (beyond)

The new technology survived infancy and eventually became widely used across the industry.

die in

Many children in developing countries still die in infancy from preventable diseases.

during/in ~

The technology industry was still in its infancy when personal computers first became available to home users.

from ~

She has been dancing from infancy and now performs professionally around the world.

since (sb's) ~

My grandmother has lived in this house since her infancy and never wanted to move.

throughout (sb's) ~

The company struggled with various problems throughout its infancy before becoming successful.