Eta
Also known as η
chữ cái thứ 7 trong bảng chữ cái Hy Lạp
AI overview
Eta is the seventh letter of the Greek alphabet, originally used to represent a consonant sound but later used for vowel sounds that varied across different Greek dialects and time periods. It matters as a fundamental component of the Greek writing system and as an example of how letter pronunciations can shift significantly over centuries of linguistic change.
AI-generated from the Wikipedia summary — may contain errors.