i think later (not sure how much later) omicron and omega merged to have the same quality but were still different in length, then later vowel length was no longer distinctive and such is greek today. so presumably at some point when the two "o" sounds were becoming more similar some weirdo grammarian decided to give them more descriptive names
Kinda fun that in Russian it happened to a bunch of letters, now duplicate letters were just thrown out, and it happened twice - during Peter the Great reforms and after October Revolution.
i think later (not sure how much later) omicron and omega merged to have the same quality but were still different in length, then later vowel length was no longer distinctive and such is greek today. so presumably at some point when the two "o" sounds were becoming more similar some weirdo grammarian decided to give them more descriptive names
Kinda fun that in Russian it happened to a bunch of letters, now duplicate letters were just thrown out, and it happened twice - during Peter the Great reforms and after October Revolution.