Ė ė is the 9th letter in the Lithuanian alphabet, and is also used in the Kölsch dialect of German, and Cheyenne language.
It was coined by Daniel Klein, the author of the first grammar of the Lithuanian language.
This character is also used when transliterating the Cyrillic letter Э э into the Latin alphabet.
This character is also used in Croatian to detonate old yat alongside with more usual ě.
Its pronunciation in Lithuanian is [eː], compared to ę, which is pronounced a lower [ɛː] (formerly nasalized [ɛ̃ː]), or e, pronounced [ɛ, ɛː].