• Firstborn

    Origin

    first + born

    Full definition of firstborn

    Noun

    firstborn

    (plural firstborns)
    1. The first child to be born to a parent or family.

    Adjective

    firstborn

    1. Born as the first one in a family, flock or the like.
    2. Most excellent; most distinguished or exalted.
    © Wiktionary