Where does “mournful” come from?

Mournful derives from Middle English -ful and Old English -ful combined with Proto-Germanic murnaną, ultimately from Proto-Indo-European (s)mer-, connected to pleh₁- meaning to fill.

mournful (English): Filled with grief or sadness; being in a state in...

Definitions

  1. Filled with grief or sadness; being in a state in...

Ancestry of “mournful”, step by step

mournful traces back through two separate lines of ancestry.

via English mourn

StepLanguageWordMeaning
1EnglishmournTo express sadness or sorrow for; to grieve over;...
2Middle EnglishmornenTo grieve; to feel sad or upset
3Old Englishmurnanto care for, worry about; to be sorrowful, to...
4Proto-Germanicmurnanąto feel sorrow or grief; to mourn
5Proto-Indo-European(s)mer-to fall into thinking, remember, care for; to...

via English ful

StepLanguageWordMeaning
1Englishful

Words derived from “mournful

Every word from Proto-Indo-European (s)mer-Every word from Proto-Germanic murnanąEvery word from Old English murnan