From Japanese 愛 (e) meaning "love, affection" combined with 恋 (ren) meaning "love". Other kanji combinations are possible.Usage of this name is, most likely, influenced by the name Ellen 1.
From the Kurdish word meaning "enduring, everlasting". In Kurdistan this name is borne by mostly villagers, but it also includes quite a few notable nobles. Supposedly the author of Sharafnameh, Sharaf al-Din Bitlisi, was also called "Eren" in his youth.