Where does “octennially” come from?

octennially (English) comes from English octennial, from English oct, from Proto-Slavic ocьtъ, from Gothic 𐌰𐌺𐌴𐌹𐍄, from Latin acētum, from French -ate, from Latin -ātus, from Proto-Italic -ātos — Forms adjectives from nouns, indicating the possession of a thing or a quality.

octennially (English): Every eight years

Definitions

  1. Every eight years

Ancestry of “octennially”, step by step

octennially traces back through two separate lines of ancestry.

via English octennial

StepLanguageWordMeaning
1EnglishoctennialOccurring every eight years; Lasting or taking...
2EnglishoctAbbreviation of octal
3Proto-Slavicocьtъvinegar
4Gothic𐌰𐌺𐌴𐌹𐍄vinegar
5Latinacētumvinegar
6French-ateate
7Latin-ātused
8Proto-Italic-ātos
9Proto-Indo-European-éh₂tosForms adjectives from nouns, indicating the possession of a thing or a quality

via English ly

StepLanguageWordMeaning
1EnglishlyAbbreviation of light-year
2VietnameselyAlternative spelling of li
Every word from Proto-Indo-European -éh₂tosEvery word from Latin -ātusEvery word from French -ate