ursein = blue (color) (adjective) (some things Google found for "ursein"; a rare term; a German word for a deep concept in mysticism and philosophy; a last name that seems to be Romanian)
Word derivation for "blue" :
Basque = urdin, Finnish = sininen
Miresua = ursein
This Miresua conlang word has been changed. The word for "blue" is now "usin".