Pronunciation: [kwˈɛlt͡ʃ] (IPA) 
Quelch is a verb that means to suppress, stifle or quench something. It is pronounced as /kwel(t)ʃ/ in IPA phonetic transcription. The spelling of quelch can be confusing because the 'ch' at the end is not pronounced as it would normally be in English. Instead, it is pronounced as the sound /ʃ/ (like the 'sh' in 'shoe'). So, if you're ever unsure about how to spell quelch, just remember the unusual pronunciation of that final 'ch'.
There is no dictionary definition for the word "quelch." It is possible that the word you are referring to is "quench," which has a clear definition.
"Quench" is a verb that primarily means to satisfy, extinguish, or alleviate one's thirst, desire, or need. It can also refer to the act of extinguishing or cooling something, such as fire or heat. In a figurative sense, "quench" can also describe the action of satisfying or ending something, such as quenching one's curiosity or quenching a rebellion.
Furthermore, "quench" can be used to describe the process of tempering or hardening metal, typically through rapid cooling, in order to make it stronger or more rigid. This can be especially applicable in metallurgy or the process of blacksmithing.
Overall, the term "quench" carries with it the concept of alleviating a desire, extinguishing something, or satisfying a need, either literally or metaphorically.
The word "quelch" doesn't have a widely recognized etymology as it is not a commonly used word in modern English. However, it is believed to have originated from Middle English or Old English.
One theory suggests that "quelch" may come from the Old English word "cwelc", meaning to press or squeeze. Another possibility is that it derives from the Middle English term "quellison", which means to suppress or stifle.
Since "quelch" is relatively obscure and not extensively documented, the etymology remains uncertain.
