The word "endermic" is not a commonly used term, and it may be challenging to spell it correctly. However, it is pronounced /en-der-mic/, with the stress on the first syllable. The sound of "en" represents the schwa sound, while "der" is pronounced like the word "dare." The final syllable "mic" sounds like the word "make." The word endermic means "relating to or situated within the skin." While this term may not be familiar, understanding its pronunciation can help in using it correctly.
In med., consisting of something to be applied to the skin and to be absorbed by it by way of a remedy for disease.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
There is no word "endermic" in the English language. However, if you meant to refer to the word "endemic", its etymology is as follows:
The word "endemic" comes from the Greek word "endēmos", which means "native" or "of the people". It is formed from the prefix "en", meaning "in" or "within", and "demos", meaning "people" or "population". The term was initially used in the field of medicine to describe diseases that are constantly present in a particular geographic area or population. Over time, its usage has expanded to describe species that are native to a specific region and are not found naturally anywhere else.