Pronunciation: [jˈiːstɪnəsɪz] (IPA) 
The word "yeastinesses" is spelled with the letter "y" representing the first sound, "jæstɪnəsɪz". The "ea" in "yeastinesses" represents the "ee" sound, and "i" is used for the short "i" sound. The "ness" at the end, as in many words, represents the state or quality of the preceding root, "yeastiness". This lengthy word can be used to describe the presence of yeast, which is a type of fungus used in baking and brewing.
The word "yeastinesses" is derived from the base word "yeasty" combined with the suffix "-ness" added to it.
The base word "yeasty" originates from the Old English word "gist", which meant "a brewing yeast" or "leaven". It is also related to the Old High German word "gest", meaning "foam" or "porridge". Over time, "gist" evolved into "yest" in Middle English and eventually turned into "yeast" in Modern English.
The suffix "-ness" is derived from Old English "-nes(s)", which was used to form abstract nouns indicating a quality or condition. It is comparable to the modern "-ness" suffix, which is still used to create abstract nouns.
By combining "yeasty" with "-ness", the word "yeastiness" is formed, referring to the state or quality of being yeasty.
