Where does “gruellingly” come from?

gruellingly (English) comes from English gruelling, from English gruel, from Middle English gruel, from Old French gruel, from Medieval Latin grutellum, from Medieval Latin grutum, from Proto-Germanic grūtiz — ground material; grit.

gruellingly (English): In a gruelling manner

Definitions

  1. In a gruelling manner

Ancestry of “gruellingly”, step by step

gruellingly traces back through two separate lines of ancestry.

via English gruelling

StepLanguageWordMeaning
1EnglishgruellingSo difficult or taxing as to make one exhausted;...
2EnglishgruelA thin, watery porridge, formerly eaten primarily...
3Middle Englishgruel
4Old Frenchgruelcoarse meal; > French {{m|fr|gruau}}
5Medieval Latingrutellum
6Medieval Latingrutumflour; meal; flour, meal, used as seasoning for...
7Proto-Germanicgrūtizground material; grit

via English ly

StepLanguageWordMeaning
1EnglishlyAbbreviation of light-year
2VietnameselyAlternative spelling of li
Every word from Proto-Germanic grūtizEvery word from Medieval Latin grutumEvery word from Medieval Latin grutellum