Surah Al-Mu'minun (23:66)
قَدْ كَانَتْ ءَايَٰتِى تُتْلَىٰ عَلَيْكُمْ فَكُنتُمْ عَلَىٰٓ أَعْقَٰبِكُمْ تَنكِصُونَ
My signs had indeed been recited to you, but you used to retreat backwards on your heels,
Roots in this verse: ك و ن (kwn), ا ي ي (Ayy), ت ل و (tlw), ع ق ب (Eqb), ن ك ص (nkS)