preeternity

/ˌpɹiːɪˈtɜː(ɹ)nɪti/

preeternity means an infinite previous duration, an eternity in the past. Lexicurio rates it Sui generis — a strength score of 88 out of 100.

preeternity is pronounced /ˌpɹiːɪˈtɜː(ɹ)nɪti/.

Why “preeternity” is a great word

An infinite previous duration; a limitless expanse of time that has already elapsed. From the English prefix pre- ("before") + eternity ("infinite time"). Unlike posteternity, which gazes forward into an endless future, or sempiternity, which stretches unbroken through all time, preeternity is the abyss behind us. It is the sum of every closed eye before birth, the total weight of silence before the first sound, and the fathomless archive of all that has been forgotten—the profound, backward infinity against which every instant is a startling, finite miracle.

Etymology

From pre- + eternity.

noun

An infinite previous duration, an eternity in the past.“the Worlds Pre-eternity”