ن ع سn-ʿ-s
(ف، ن) نَعَسَ يَنْعَسُ وَيَنْعُسُ نُعَاسًاnaʿasa yanʿasu wa-yanʿusu nuʿāsan: to doze; (of the senses) to become sluggish. (This verb is not used in the Quran.)
نُعَاسٌnuʿās (verbal noun, maṣdar, also a noun, ism dhāt): drowsiness; both times in the Quran it comes upon the Muslims on the battlefield as a reassurance from God. ﴿اِذْ يُغَشِّيْكُمُ النُّعَاسَ اَمَنَةً مِّنْهُ﴾ (Al-Anfāl 8:11); ﴿ثُمَّ اَنْزَلَ عَلَيْكُمْ مِّنْۢ بَعْدِ الْغَمِّ اَمَنَةً نُّعَاسًا﴾ (Āl ʿImrān 3:154)