The Semitic letter ח (ḥêṯ) most likely represented the voiceless pharyngeal fricative (IPA: [ħ]). The form of the letter probably stood for a fence or posts. The early Greek H stood for /h/, but later on, this letter, eta (Η, η), became a long vowel, /ɛː/. In Modern Greek, this phoneme has merged with /i/, [...]