Where does “millennium” come from?

Millennium comes from Late Latin millennium, derived from Latin mille meaning "thousand" and Latin annus meaning "year," ultimately from Proto-Indo-European h₂et- meaning "to go."

millennium (English): A period of time consisting of one thousand...

Definitions

  1. A period of time consisting of one thousand...

Ancestry of “millennium”, step by step

millennium 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 “millennium

Every word from Proto-Indo-European h₂et-