The Thracian word sem(e)la
Word sem(e)la
Meaning land, earth
See also Phrygian: ΖΕΜΕΛΩΣ ‘man, human being’
Greek: χθαμαλός ‘near the ground’
Proto-Indo-European: *ĝhðem-, ĝhðom- ‘earth’
Doric Greek: σέμελος ‘snail’
Avestan: zam- ‘earth, ground’

Other words that might be of interest
asas ‘stone’, bergas ‘hill, bank’, chalas ‘mud’, dun ‘mountain, hill’, haimos ‘ridge, mountain chain’, ida ‘tree, forest’, il(u) ‘silt, mud’, kapas ‘hill, slope’, kiri ‘mountain’, kurta ‘grove, wood’, per(u)- ‘rock’, rera ‘stones’, skumbras ‘mountain, hill’, sula ‘grove’, carpatis ‘mountain’, Kogaionon ‘mountain name’