spook-y / spo͞o-kē
1. causing one to think of ghosts or phantoms; ghostly
In Victorian Britain, spooky winter’s tales were part of the Christmas season, often told after dinner, over port or coffee.
Michael Dirda, 1948 –
I’ve made up stuff that’s turned out to be real, that’s the spooky part.
Tom Clancy, 1947 – 2013
3. nervous and jumpy; easily scared
I was a spooky kid; that was just my nature.
Elizabeth Marvel, 1969 –
An English adjective formed from the noun “spook,” which is a Dutch word meaning “ghost,” “spirit,” or “apparition.”
Thank you to Allen Ward for providing this etymology.