E with macron (Э̄ э̄; italics: Э̄ э̄) is a letter of the Cyrillic script.
E with macron is used in the Aleut (Bering dialect), Evenki, Mansi, Nanai, Negidal, Orok, Ulch, Kildin Sami, Selkup and Chechen languages.
References
See also Е̄ е̄ : Cyrillic letter Ye with macron Ē ē : Latin letter Ē Cyrillic characters in Unicode