Where does “dubitably” come from?

dubitably (English) comes from English dubitable, from Latin dubitabilis, from Latin -bilis, from Proto-Italic -ðlis, from Proto-Indo-European -dʰlis, from Proto-Indo-European -dʰlom — Alternative form of *-trom; instrumental suffix;...

dubitably (English): doubtfully

Definitions

  1. doubtfully

Ancestry of “dubitably”, step by step

dubitably traces back through two separate lines of ancestry.

via English dubitable

StepLanguageWordMeaning
1EnglishdubitableCapable of being doubted; susceptible of being...
2Latindubitabilisdoubtful
3Latin-bilis-ble
4Proto-Italic-ðlisForms adjectives from verb stems indicating capacity or worth of being acted on
5Proto-Indo-European-dʰlis
6Proto-Indo-European-dʰlomAlternative form of *-trom; instrumental suffix;...

via English ly

StepLanguageWordMeaning
1EnglishlyAbbreviation of light-year
2VietnameselyAlternative spelling of li
Every word from Proto-Indo-European -dʰlomEvery word from Latin -bilisEvery word from Latin dubitabilis