Qaf-Waw-Ya (ق-و-ي) has 2 words in the Fahm dictionary: qawī (strong / powerful), quwwa (strength / power / force).
In the Quran, words built on this root occur 42 times in 39 verses, across 25 of the 114 suras. The first is in 2:63. The form قُوَّة (strength / power / force) accounts for 30 of them.
And (remember, O Children of Israel) when We made a covenant with you and caused the mount to tower above you, (saying): Hold fast that which We have given you, and remember that which is therein, that ye may ward off (evil).
(Their way is) as the way of Pharaoh's folk and those before them; they disbelieved the revelations of Allah, and Allah took them in their sins. Lo! Allah is Strong, severe in punishment.
We, even We, appointed it a memorial and a comfort for the dwellers in the wilderness.
Quran 56:73
Arabic text: Tanzil Quran Text (Uthmani 1.1), CC BY 3.0, tanzil.net. English: Marmaduke Pickthall, The Meaning of the Glorious Koran (1930), public domain, via Project Gutenberg. Counts and verse choice: Quranic Arabic Corpus morphology data (corpus.quran.com).