Neonate (noun)

1. A newborn baby, especially one less than 4 weeks old.
2. A newborn or very young organism, especially one of the first few days or weeks of life.

Origin:

Derived from the latin word 'neonatus' meaning 'newborn'.

Examples:

1. The neonate was tiny, weighing only a few pounds.
2. The neonate required special care and monitoring in the neonatal unit.
3. The neonate was doing well and showed no signs of distress.
4. The neonate was kept in an incubator to regulate its temperature.
5. The neonate was breastfed by its mother every few hours.