About the Dutch word "zuurdeeg"

"Sourdough" is the English/American word for the Dutch word "zuurdeeg" (zuur = sour, deeg = dough).

"Leip zuurdeeg" (crazy/odd sourdough) is sometimes used for a person talking nonsense or behaving a tad erratic.

Some Dutch and Americans have "Zuurdeeg" as their family name.

The word "zuurdesem" is used as an alternative to zuurdeeg. In Germany "sauerteig" is used (sauer = sour, teig = dough).

Some other Dutch words:
Dutch English
Boekweit Buckwheat
Gerst Barley
Haver Oats
Rogge Rye
Spelt Spelt