Summer

Derived from the Old English noun sumor, denoting the warmest quarter of the year. American registers saw only isolated appearances in the 1910s and 1920s before the counterculture and daytime television popularized seasonal vocabulary names in the 1970s. By the late 1990s, it had shed its novelty status entirely and entered regular rotation.

The name reads as warm, informal, and distinctly late-twentieth-century. It suggests someone who spent their elementary school years drinking Capri Sun and owns a well-worn denim jacket. With an average age around twenty-five, the typical bearer is just old enough to remember dial-up internet and young enough to distrust voicemail. It remains one of the few calendar-based names where nobody checks the birth certificate against the equinox.