So now we have Next, Nuxt, and Nyxt. What’s noxt?
Well there's still two more vowels[1], so at a guess ... Naxt and Nixt?
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[1] I've never understood why 'Y' is not a vowel.
I dare say its made up as it goes along
Not a hard rule, honestly.
Some Indian languages exhibit a blurring of sorts with Ye- sounds. E.g., in Telugu, the word for 'How' is 'yela', which is often also pronounced as 'ela'. TBF, Telugu also blurs Ve-/We- sounds similarly.
The word "eye" is an interesting one. It seems to be only vowels, based on pronunciation.
Some letters always represent vowel sounds.
Some letters never represent vowel sounds.
Some letters are the letter Y