Where does “millennial” come from?

Millennial derives from English millennium, from Latin mille meaning thousand, from Proto-Italic smīɣeslī, ultimately from Proto-Indo-European h₂et- meaning year.

millennial (English): Referring to the 1,000th anniversary of an event...

Definitions

  1. Referring to the 1,000th anniversary of an event...

Ancestry of “millennial”, step by step

millennial traces back through two separate lines of ancestry.

via Late Latin millennium

StepLanguageWordMeaning
1Late Latinmillenniummillennium
2Latin-enniumforming periods of years
3Latin-ennis
4Latinannusyear; time; season
5Proto-Italicatnosyear
6Proto-Indo-Europeanh₂et-no-
7Proto-Indo-Europeanh₂et-grass

via Latin millennium

StepLanguageWordMeaning
1Latinmillenniummillennium
2Latinmīllennis

Words derived from “millennial

Every word from Proto-Indo-European h₂et-