س م رs-m-r
(ن) سَمَرَ يَسْمُرُ سَمَرًا وَسُمُوْرًاsamara yasmuru samaran wa-sumūran: to pass the night in conversation without sleeping.
سَامِرٌsāmir (active participle, ism fāʿil, used as a collective noun, ism jamʿ): those who tell tales by night. ﴿مُسْتَكْبِرِيْنَ بِهِۦ سٰمِرًا تَهْجُرُوْنَ﴾ (Al-Muʾminūn 23:67)
سَامِرِيٌّsāmiriyy (relative adjective, ism mansūb): the Sāmirī. ﴿وَاَضَلَّهُمُ السَّامِرِيُّ﴾ (Ṭā Hā 20:85)