It is so hard to even learn what each word means. You really have to search.
I studied WICCAN for a few years and I learned so much lore to do with the Celtic history and Gaelic is unpronounceable. GOD, to just find the correct pronunciation of a word takes forever looking it up.
I'm sure Elizabeth is exactly how you really pronounce Eilish. That is how out there the pronunciations are.
OMG! Goat is still trying to teach me how to drop my "Rs" to master a Boston accent. I'd never survive Gaelic, but it is fascinating. The history alone is magnificent.