An English word name from Latin aeternitas, meaning "endlessness" or "forever."
Eternity is one of the most philosophically ambitious word names in the English-language naming tradition, arriving as a given name on the coat-tails of the Puritan virtue-name movement that produced Hope, Grace, Faith, and Patience, while pushing the concept into genuinely metaphysical territory. The word itself descends from the Latin aeternitas, formed from aeternus (everlasting), which in turn derives from aevum, meaning "age" or "era" — the same root that gives us "medieval" and "longevity." Ancient philosophers from Plato to Augustine wrestled with eternity as a concept, distinguishing it from mere endless duration: eternity, properly understood, transcends time altogether.
As a name, Eternity carries the unmistakable imprint of deep parental love and spiritual aspiration — the desire to give a child a name that reaches beyond the ordinary and touches something absolute. In African American communities in particular, the name found meaningful adoption in the 1990s and 2000s as part of a broader embrace of names that communicate significance, destiny, and the weight of a soul. The perfume Eternity by Calvin Klein, launched in 1988, also kept the word in popular cultural circulation, associating it with romantic permanence and idealized love.
Literary and philosophical associations abound: William Blake wrote of seeing "eternity in a grain of sand," and countless poets have invoked the concept as the ultimate measure against which human love is tested. For a child named Eternity, the name becomes a quiet dare — to live up to something vast, to carry a reminder that what we do here echoes forward. It is a name of extraordinary ambition and, worn well, extraordinary grace.