Etymology of the English word petrous
the English word
petrousderived from the Old French word
petrosderived from the Latin word
petrosus (rocky)
derived from the Latin word
petra (rock, boulder; shaped stone as used in building)
derived from the Greek word
petra, πέτρα (a (mass of) rock)
derived from the Proto-Indo-European root
*per-Usage
Word found in Modern English