What is the Greek root syllable 'petr-' in English?

Answer 1

The Greek root word petr- means stone or rock. Some examples of use of this root include:

• Petrified - to be terrified; "turned to stone" (both literally and figuratively)
• Petracide - the destruction of stone buildings or monuments
• Petrography - the description and classification of rocks
• Petrichor - the smell after rainfall
• Petrobiont - lives among rocks

Answer 2

Rock, stone is the English equivalent of the Greek root 'petr-'. An example of a Greek derivative is the noun 'petros', which means 'stone'. An example of an English derivative is the noun 'petroglyph', which comes from the Greek 'petra' for 'rock' and the Greek 'gluphe' for 'carving'.