The word(s) "waver" appears 2 time(s) in 2 verse(s) in Quran in Muhammad Habib Shakir translation.

(1) wavering between that (and this), (belonging) neither to these nor to those; and whomsoever Allah causes to err, you shall not find a way for him.

(سورة النساء, An-Nisaa, Chapter #4, Verse #143)
(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) They only ask leave of you who do not believe in Allah and the latter day and their hearts are in doubt, so in their doubt do they waver.

(سورة التوبة, At-Tawba, Chapter #9, Verse #45)
(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)