Where does “decaffeination” come from?

decaffeination (English) comes from English de, from Chinese 德, from Mandarin 德意志, from German Deutsch, from Old High German diutsch, from Old High German diutisc, from Proto-West Germanic þiudisk, from Proto-Germanic þiudiskaz — to swell; to crowd; to be strong.

decaffeination (English): The removal of caffeine

Definitions

  1. The removal of caffeine

Ancestry of “decaffeination”, step by step

decaffeination traces back through two separate lines of ancestry.

via English de

StepLanguageWordMeaning
1EnglishdeTo do; Pronunciation spelling of the; A...
2Chinese
3Mandarin德意志
4GermanDeutschGerman
5Old High Germandiutsch
6Old High GermandiutiscAlternative form of diutisk; popular, vernacular;...
7Proto-West Germanicþiudiskof the people, popular, vernacular
8Proto-Germanicþiudiskazof the people, popular; of the tribe
9Proto-Germanicþeudōpeople, tribe
10Proto-Indo-Europeantewtéh₂people, tribe
11Proto-Indo-Europeantewh₂-to swell; to crowd; to be strong

via English caffeine

StepLanguageWordMeaning
1EnglishcaffeineAn alkaloid, CHNO, found naturally in tea and...
2GermanCaffeinObsolete form of Koffein
3GermanKaffeecoffee; afternoon coffee, coffee and cake
4Frenchcafécoffee; coffee colour; public house
5Italiancaffècoffee; a café
6Turkishkahvecoffee
7Ottoman Turkishقهوهcoffee
8Persianقهوهcoffee
9Arabicقهوةwine; coffee; coffee shop, café
Every word from Proto-Indo-European tewh₂-
decaffeination — Etymology, Origin & Word History | Etymology Explorer