Where does “biyearly” come from?

biyearly (English) comes from English yearly, from Middle English yeerly, from Old English ġēarlīc, from Old English ġēar, from Proto-West Germanic jār, from Proto-Germanic jērą, from Proto-Indo-European yeh₁r- — year.

biyearly (English): Occurring every two years; biennial; Occurring...

Definitions

  1. Occurring every two years; biennial; Occurring...

Ancestry of “biyearly”, step by step

StepLanguageWordMeaning
1EnglishyearlyHappening once every year; Once a year; Every...
2Middle Englishyeerly—
3Old Englishġēarlīcyearly, of the year, annual
4Old Englishġēaryear
5Proto-West Germanicjāryear
6Proto-Germanicjērąyear; name of the J-rune
7Proto-Indo-Europeanyeh₁r-year
Every word from Proto-Indo-European yeh₁r- →Every word from Proto-Germanic jērą →Every word from Proto-West Germanic jār →