adjective
also el·drich or el·ritch ˈel(d)rich
Etymology: perhaps from (assumed) Old English ælfrīce fairyland, from Old English ælf elf + rīce kingdom, power; akin to Old English rīce powerful, rich — more at elf , rich
: weird , eerie , uncanny
the eldritch screech of hunting horns swelled louder — F.V.W.Mason
its eldritch comedy captivated audiences around the world — Lincoln Barnett