The Latin word petra
Word petra
Meaning stone
See also Ancient Macedonian: Πέτρα ‘place name, stone’
Synonyms saxum, lapis, calculus

Other words that might be of interest
fossa ‘ditch’, nemus ‘grove, glade’, limus ‘slime, mud, mire’, arbor ‘tree’, silva ‘forest’, harena ‘sand’, pulvis ‘dust’, humus ‘earth’, terra ‘earth’, ager ‘earth’, mons ‘mountain’, cavus ‘hole, pit’