Merankorii was born in the beginning of 2004 as a side project of Mind Booster Noori, a tentative form of cultural art with a melancholic and depressive touch of a reality injection to a body who had no more hope on living. It soon evolved to what it could be a quite schizophrenic movie, but it, instead, turned into Doom Poetry from a Melancholic Soul, a Doomish sound that you're able to hear in the first CD, released in April 2005. Four months later all the CD's were sold out, but the recordings of Merankorii's second one, Crash, were already on the process... At 2005's Winter Solistice, the 21st of December, Crash was released in a 50 copies edition.

Merankorii signed to Nekrogoat Heresy Productions to mark the release of Merankorii's 3rd album Melencolia III, that was released on the 15th of January 2007. At the 15th of May the 4th album, Sanguine, was released as a split CD and split tape with Bardic Wisdom.

A Viagem was released in the 1st of April 2008 in a 30 copies limited edition by the label Noori Records.

In the following month, 13th of May 2008, Njiijn Arts Productions released and untitled split with the bands Ancestral, Merankorii and Njiqahdda.

2011 saw the release of two new Merankorii albums: Alain, a neoclassical tribute, and Rather Than Bored, Merankorii's first release on Vinyl.