Where does “indubitably” come from?

Indubitably comes from English indubitable, from Latin dubitabilis meaning "doubtful," prefixed with Latin in- "not," ultimately from Proto-Indo-European roots meaning "together" and "doubt."

indubitably (English): In a manner that leaves no possibility of doubt;...

Definitions

  1. In a manner that leaves no possibility of doubt;...

Ancestry of “indubitably”, step by step

StepLanguageWordMeaning
1English-lyUsed to form adjectives from nouns, the...
2EnglishgrislyHorrifyingly repellent; gruesome, terrifying;...
3Middle Englishgrisely
4Old Englishgrisliċgrisly, horrible; dreadful, horrid
5Old English-līċsuffix forming {{glossary|adjective}}s meaning...
6Proto-Germanic*-līk
Every word from Proto-Germanic *-līkEvery word from English -lyEvery word from Old English -līċ