Here are some synonyms for eerie:
* Spooky
* Uncanny
* Creepy
* Weird
* Ominous
* Unsettling
* Disquieting
* Chilling
* Haunting
Example sentences:
* The abandoned house had an eerie silence to it.
* The old woman's eyes held an eerie glint.
* The sound of the wind whistling through the trees was eerie.
Origin:
The word "eerie" comes from the Old English word "ēa" meaning "water," and the Old Norse word "īrr" meaning "confused, wandering." This suggests that the word originally referred to the feeling of disorientation and unease associated with being lost at sea.