The spelling of the word "Petry" can be a bit confusing for those unfamiliar with the phonetic rules of English. It is pronounced as /ˈpetri/, with the stress on the first syllable. The letter "y" at the end of the word represents the sound /i/, which is commonly spelled as "ie" or "ee". However, in this case, "y" is used because it follows a consonant sound, fulfilling the spelling rule that says "i" is changed to "y" after a consonant. Therefore, "Petry" is spelled as such due to the English phonetic rules.