Eta

Seventh letter in the Greek alphabet

Eta is the seventh letter of the Greek alphabet, representing the close front unrounded vowel,. Originally denoting the voiceless glottal fricative,, in most dialects of Ancient Greek, its sound value in the classical Attic dialect was a long open-mid front unrounded vowel,, which was raised to in Hellenistic Greek, a process known as iotacism or itacism.

This keyword could refer to multiple things. Here are some suggestions: