Where does “yeastful” come from?
yeastful (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.
Ancestry of “yeastful”, step by step
yeastful traces back through two separate lines of ancestry.
via English yeast
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | yeast | An often humid, yellowish froth produced by... |
| 2 | Middle English | yest | Alternative form of geste; The broth or foam... |
| 3 | Old English | ġist | — |
| 4 | Proto-West Germanic | jestu | fermentation; byproducts or agents of... |
| 5 | Proto-Germanic | jestuz | fermentation; byproducts or agents of... |
| 6 | Proto-Indo-European | yes- | to foam; to boil |
via English ful
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | ful | — |