Where does “yeastless” come from?

yeastless (English) comes from English yeast, from Middle English yest, from Old English ġist, from Proto-West Germanic jestu, from Proto-Germanic jestuz, from Proto-Indo-European yes- — to foam; to boil.

yeastless (English): Without yeast

Definitions

  1. Without yeast

Ancestry of “yeastless”, step by step

yeastless traces back through two separate lines of ancestry.

via English yeast

StepLanguageWordMeaning
1EnglishyeastAn often humid, yellowish froth produced by...
2Middle EnglishyestAlternative form of geste; The broth or foam...
3Old Englishġist
4Proto-West Germanicjestufermentation; byproducts or agents of...
5Proto-Germanicjestuzfermentation; byproducts or agents of...
6Proto-Indo-Europeanyes-to foam; to boil

via English less

StepLanguageWordMeaning
1EnglishlessTo a smaller extent or degree; comparative form...
2Middle Englishlesfalse; lying; deceptive; falsehood; a lie
3Old Englishlēasfalse, lax; false, void, loose; devoid of, loose...
4Proto-Germanic*laus
Every word from Proto-Indo-European yes-Every word from Proto-Germanic jestuzEvery word from Proto-West Germanic jestu