eldritch

Etymology
From the earlier form elritch, of origin. The second element, -ritch, is generally taken to be (see riche). Some think that the first element, el-, derives from an Old English root meaning "foreign, strange, other" (related to 🇨🇬 and modern English else); others think that it derives from elf. It was reintroduced into popular literature by the writings of.

Adjective

 * , supernatural, eerie, preternatural.