The use of this Phoenician letter for any vowel audio is due to early Greek alphabets, which adopted the letter "omicron" to stand for the vowel /o/. The letter was adopted with the worth in the Old Italic alphabets, such as the early Latin alphabet. Intelligent Vocabulary: related text https://emilioaglpu.jts-blog.com/35998817/the-basic-principles-of-o-sapinho-e-a-borboleta