Eta
Eta is the seventh letter of the Greek alphabet. Originally denoting the consonant /h/, its sound value in the classical Attic dialect of Ancient Greek was a long vowel [ɛː], raised to [i] in hellenistic Greek, a process known as iotacism. In the ancient Attic number system, the number 100 was represented by "Η", because it was the initial of ΗΕΚΑΤΟΝ, the ancient spelling of ἑκατόν = "one hundred". In the later system of Greek numerals eta represents 8. Eta was derived from the Phoenician letter heth. Letters that arose from eta include the Latin H and the Cyrillic letter И and Й.
