The word(s) "عتو" appears in 5 verse(s) in Quran.

(1) فَعَقَرُوا النَّاقَةَ وَعَتَوْا عَنْ أَمْرِ رَبِّهِمْ وَقَالُوا يَا صَالِحُ ائْتِنَا بِمَا تَعِدُنَا إِن كُنتَ مِنَ الْمُرْسَلِينَ

(سورة الأعراف, Al-A'raaf, Chapter #7, Verse #77)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)

(2) فَلَمَّا عَتَوْا عَن مَّا نُهُوا عَنْهُ قُلْنَا لَهُمْ كُونُوا قِرَدَةً خَاسِئِينَ

(سورة الأعراف, Al-A'raaf, Chapter #7, Verse #166)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)

(3) ۞ وَقَالَ الَّذِينَ لَا يَرْجُونَ لِقَاءَنَا لَوْلَا أُنزِلَ عَلَيْنَا الْمَلَائِكَةُ أَوْ نَرَىٰ رَبَّنَا ۗ لَقَدِ اسْتَكْبَرُوا فِي أَنفُسِهِمْ وَعَتَوْا عُتُوًّا كَبِيرًا

(سورة الفرقان, Al-Furqaan, Chapter #25, Verse #21)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)

(4) فَعَتَوْا عَنْ أَمْرِ رَبِّهِمْ فَأَخَذَتْهُمُ الصَّاعِقَةُ وَهُمْ يَنظُرُونَ

(سورة الذاريات, Adh-Dhaariyat, Chapter #51, Verse #44)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)

(5) أَمَّنْ هَـٰذَا الَّذِي يَرْزُقُكُمْ إِنْ أَمْسَكَ رِزْقَهُ ۚ بَل لَّجُّوا فِي عُتُوٍّ وَنُفُورٍ

(سورة الملك, Al-Mulk, Chapter #67, Verse #21)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)