Where does “equinox” come from?

Equinox comes from Old French equinoce, from Medieval Latin equinoxium, from Latin aequinoctium, combining aequus meaning equal with nókʷts meaning night.

equinox (English): The intersection of the apparent path of the sun...

Definitions

  1. The intersection of the apparent path of the sun...

Ancestry of “equinox”, step by step

StepLanguageWordMeaning
1Frenchéquinoxeequinox
2Old Frenchequinoce—
3Medieval Latinequinoxium—
4Latinaequinoctiumequinox
5Latin-iumSuffix used to form abstract nouns, sometimes...
6Latin-iusforming adjectives from nouns; nominative neuter...
7Proto-Italic-jōsForms comparative adjectives
8Proto-Indo-European-yósCreates adjectives from noun or verb stems

Words derived from “equinox”

Every word from Proto-Indo-European -yós →Every word from Latin -ium →Every word from Latin -ius →