Where does “equinoccio otoñal” come from?

equinoccio otoñal (Spanish) comes from Spanish equinoccio, from Latin aequinoctium, from Latin -ium, from Latin -ius, from Proto-Italic -jōs, from Proto-Indo-European -yós — Creates adjectives from noun or verb stems.

equinoccio otoñal (Spanish): autumnal equinox

Definitions

  1. autumnal equinox

Ancestry of “equinoccio otoñal”, step by step

equinoccio otoñal traces back through two separate lines of ancestry.

via Spanish equinoccio

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

via Spanish otoñal

StepLanguageWordMeaning
1Spanishotoñalautumnal
2Latinautumnālis
3Latinautumnusautumn, fall; autumn; autumnal
4Latinauctumnusautumn; autumn; autumnal
5Proto-Indo-Europeanh₃ewǵ-cold
Every word from Proto-Indo-European -yósEvery word from Latin -iumEvery word from Latin -ius