The Greek word χθων
Word χθων
kʰ tʰ ɔː n
IPA kʰtʰɔːn
Meaning earth, soil
See also Phrygian: ΓΔΑΝ ΜΑ ‘earth mother’
Phrygian: ΚΤΟΝ ‘earth, ground’
Hittite: te-e-kan ‘earth’
Tocharian A: tkam̥ ‘earth’
Avestan: zam- ‘earth, ground’

Other words that might be of interest
ύλη ‘wood, timber, forest’, δρυς ‘oak’, λεύς ‘stone’, πέλλα ‘stone’, πυτνα ‘stone, hill, rock’, λόφος ‘back of the neck, hill, ridge, crest of a helmet’, πέτρα ‘stone, rock’