(ن) طَلَعَ يَطْلُعُ طُلُوْعًاṭalaʿa yaṭluʿu ṭulūʿan: to rise and come into view: (1) to ascend (2) to come out, to emerge. ﴿وَتَرَي الشَّمْسَ اِذَا طَلَعَتْ﴾ (Al-Kahf 18:17)
طَلْعٌṭalʿ (noun, ism dhāt): the spathe of the date palm; cluster; shoot. ﴿وَالنَّخْلَ بٰسِقٰتٍ لَّهَا طَلْعٌ نَّضِيْدٌ﴾ (Qāf 50:10)
مَطْلَعٌmaṭlaʿ and مَطْلِعٌmaṭliʿ (noun of time or place, ẓarf): the place or time of rising. ﴿سَلٰمٌ هِيَ حَتّٰى مَطْلَعِ الْفَجْرِ﴾ (Al-Qadr 97:5); ﴿حَتّٰٓى اِذَا بَلَغَ مَطْلِعَ الشَّمْسِ﴾ (Al-Kahf 18:90)
Form III (mufāʿalah) طَالَعَ يُطَالِعُ مُطَالَعَةًṭālaʿa yuṭāliʿu muṭālaʿatan: to look at something attentively; to read a book or the like with care (this verb is not used in the Quran).
Form IV (ifʿāl) اَطْلَعَ يُطْلِعُ اِطْلَاعًاaṭlaʿa yuṭliʿu iṭlāʿan: to raise and bring into view, i.e. to inform someone of something. ﴿وَمَا كَانَ اللّٰهُ لِيُطْلِعَكُمْ عَلَي الْغَيْبِ﴾ (Āl ʿImrān 3:179)
Form VIII (iftiʿāl) اِطَّلَعَ يَطَّلِعُ اِطِّلَاعًاiṭṭalaʿa yaṭṭaliʿu iṭṭilāʿan: (1) to climb (2) to climb up on something and look over (3) to become aware.
مُطَّلِعٌmuṭṭaliʿ (active participle, ism fāʿil): one who looks over; one who becomes aware. ﴿فَاطَّلَعَ فَرَاٰهُ فِيْ سَوَآءِ الْجَحِيْمِ﴾ (Aṣ-Ṣāffāt 37:55)