The Greek word πέτρα
Word πέτρα
p e. t r a
IPA pe.tra
Meaning stone, rock
See also Ancient Macedonian: Πέτρα ‘place name, stone’
Synonyms λεύς, πέλλα, πυτνα

Other words that might be of interest
ύλη ‘wood, timber, forest’, δρυς ‘oak’, γύπη ‘pit’, μάρμαρο ‘marble’, χθων ‘earth, soil’, λόφος ‘back of the neck, hill, ridge, crest of a helmet’