A very young child or baby
Derived directly from the Latin word 'infans', which literally translates to 'unable to speak'. While historically used as a placeholder on birth certificates before a name was chosen, it is exceptionally rare as a formal given name in the United States.
Less common today
Infant isn't in the latest US Top 1000. It last peaked at #389 in 1990.
US births per 5-year period, 1990βpresent (SSA data).