(ن) سَرَّ يَسُرُّ سُرُوْرًاsarra yasurru surūran: to make someone glad; in the verse «تَسُرُّtasurru» is feminine: although «لَوْنlawn» is masculine, it is the annexed noun (muḍāf) of the feminine (hā), so a feminine verb may be used (the verb may also refer back to the cow). ﴿صَفْرَآءُ فَاقِعٌ لَّوْنُهَا تَسُرُّ النّٰظِرِيْنَ﴾ (Al-Baqarah 2:69)
مَسْرُوْرٌmasrūr (passive participle, ism mafʿūl): glad; joyful. ﴿وَّيَنْقَلِبُ اِلٰٓى اَهْلِهِۦ مَسْرُوْرًا﴾ (Al-Inshiqāq 84:9)
سَرَّاءُsarrāʾu (noun (ism dhāt) on the pattern of فَعْلَاءُfaʿlāʾu): a state of gladness; joy, well-being. ﴿الَّذِيْنَ يُنْفِقُوْنَ فِي السَّرَّآءِ وَالضَّرَّآءِ﴾ (Āl ʿImrān 3:134)
سِرٌّsirr pl. اَسْرَارٌasrār (noun, ism dhāt): a secret (one sometimes gladdens another by sharing or by keeping a secret). ﴿يَعْلَمُ السِّرَّ وَاَخْفٰى﴾ (Ṭā Hā 20:7)
سَرِيْرٌsarīr pl. سُرُرٌsurur (on the pattern of فَعِيْلٌfaʿīl): literally, that which always gladdens, but generally used for a royal throne; a couch. ﴿عَلٰى سُرُرٍ مُّتَقٰبِلِيْنَ﴾ (Al-Ḥijr 15:47)
Form IV (ifʿāl) اَسَرَّ يُسِرُّ اِسْرَارًاasarra yusirru isrāran (original form: اَسْرَرَ يُسْرِرُasrara yusriru): (1) to confide a secret, for which it generally takes the preposition «اِلٰىilā» (2) to conceal a secret, generally with a direct object. ﴿وَاَسَرُّوا النَّدَامَةَ﴾ (Yūnus 10:54)