Where does “thoughtfulness” come from?

Thoughtfulness comes from Old English þohtfulness, composed of þoht (thought) and -nes (a suffix forming abstract nouns), ultimately from Proto-Germanic -inassuz.

thoughtfulness (English): Thoughtful and considerate attention; Careful...

Definitions

  1. Thoughtful and considerate attention; Careful...

Ancestry of “thoughtfulness”, step by step

StepLanguageWordMeaning
1EnglishthoughtfulDemonstrating thought or careful consideration;...
2Middle Englishthoȝtful
Every word from Middle English thoȝtfulEvery word from English thoughtful
thoughtfulness — Etymology, Origin & Word History | Etymology Explorer