Where does “unusually” come from?

Unusually derives from English unusual, from Latin usualis and unus, both ultimately tracing to Proto-Indo-European óynos meaning one, with the suffix -alis from Proto-Indo-European ano-.

unusually (English): In an unusual manner

Definitions

  1. In an unusual manner

Ancestry of “unusually”, step by step

StepLanguageWordMeaning
1EnglishunusualNot usual, out of the ordinary; Something that is...
2EnglishusualMost commonly occurring; typical; The typical...
3Middle Englishusualcustomary, established; usual, normal, regular
4Old Frenchusuel
5Latinusualisthat is for use, that is in service: utilitarian;...
6Latinūsususe, employment, exercise, advantage
7Latinūtorto use, make use of, employ
8Proto-Slavic*ǫtorъcroze
9Proto-Slavictorъpaddock, pen
10Proto-Slavictertito rub, to scrape; to polish
11Proto-Indo-Europeanterh₁-to rub, turn; to drill, pierce
Every word from Proto-Indo-European terh₁-