/thoh"nee euhn/ , adj. Class. Myth.
of or pertaining to the deities, spirits, and other beings dwelling under the earth.
Also, chthonic /thon"ik/ .
[ 1840-50; chthóni ( os ) ( chthon-, s. of chthón earth + -ios adj. suffix) + -AN; akin to L humus earth (see HUMUS) ]