Alif-Nun-Fa (ا-ن-ف) has 3 words in the Fahm dictionary: anf (nose), istiʾnāf (appeal (legal)), istaʾnafa (to appeal / to resume).
In the Quran, words built on this root occur 3 times in 2 verses, across 2 of the 114 suras. The first is in 5:45. The form أَنْف (nose) accounts for 2 of them.
Among them are some who give ear unto thee (Muhammad) till, when they go forth from thy presence they say unto those who have been given knowledge: What was that he said just now? Those are they whose hearts Allah hath sealed, and they follow their own lusts.
Quran 47:16
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).