The Mon-keigh were an ancient xenos species that was exterminated by the Aeldari millennia before their first contact with Mankind. The Mon-keigh are described in Aeldari stories and legends as a species of sub-intelligent, cannibalistic beasts that lived in the twilight realm of Koldo. These misshapen monstrosities invaded the Aeldari lands and subjugated them for many cycles, until they were eventually cleansed from the galaxy by the hero Elronhir.
Since then, Imperial scholars surmise that the word mon-keigh, also spelled mon'keigh, of the Aeldari Lexicon refers to any non-Aeldari species they deem inferior and in need of extermination. In general, it is now a pejorative term used to describe Humanity.
Sources[]
- Codex: Eldar (3rd Edition), pg. 48