Where does “թթխմոր” come from?

թթխմոր (Armenian) comes from Armenian թթու, from Old Armenian թթու, from Old Armenian թութ-.

թթխմոր (Armenian): yeast, leaven, ferment

Definitions

Step	Language	Word	Meaning
1	Armenian	թթու	sour; bitter, harsh, grievous; marinated food;...
2	Old Armenian	թթու	acid, sour, tart, sharp; bitter, harsh, grievous,...
3	Old Armenian	թութ-	—

թթխմոր — Etymology, Origin & Word History | Etymology Explorer