Where does “mercifulness” come from?

mercifulness (English) comes from English merciful, from Middle English merciful, from Middle English mercy, from Middle English -ful, from Old English -ful, from Proto-Germanic -fullaz, from Proto-Germanic fullaz, from Proto-Indo-European pl̥h₁nós — to fill.

mercifulness (English): The state of being merciful; mercy

Definitions

  1. The state of being merciful; mercy

Ancestry of “mercifulness”, step by step

mercifulness traces back through two separate lines of ancestry.

via English merciful

StepLanguageWordMeaning
1Englishmercifulshowing mercy
2Middle Englishmerciful
3Middle EnglishmercyAlternative form of mercien
4Middle English-fulAppended to nouns to form adjectives denoting...
5Old English-fulfull of; -ful
6Proto-Germanic-fullaz-ful
7Proto-Germanicfullazfull; the whole, the entire
8Proto-Indo-Europeanpl̥h₁nósfull
9Proto-Indo-Europeanpleh₁-to fill

via Middle English mercyfulnes

StepLanguageWordMeaning
1Middle Englishmercyfulnes
Every word from Proto-Indo-European pleh₁-