(ف) ظَهَرَ يَظْهَرُ ظُهُوْرًاẓahara yaẓharu ẓuhūran: for something to become manifest (the opposite of khafāʾ, concealment). It has four uses: (1) to appear (2) to climb — in this sense it is transitive and takes its direct object directly (3) to prevail — in this sense it takes the preposition عَليٰʿalyā (4) to become acquainted with something, i.e. to come to know a secret — for this too it takes the preposition عَليٰʿalyā; the two are distinguished by the context. ﴿ظَهَرَ الْفَسَادُ فِي الْبَرِّ وَالْبَحْرِ﴾ (Ar-Rūm 30:41)
ظَاهِرٌẓāhir (active participle, ism fāʿil): manifest, open. ﴿وَذَرُوْا ظَاهِرَ الْاِثْمِ وَبَاطِنَهُۥ﴾ (Al-Anʿām 6:120)
ظَهْرٌẓahr pl. ظُهُوْرٌẓuhūr: the rear part of something; back (the part that is prominent and exposed). ﴿الَّذِيْٓ اَنْقَضَ ظَهْرَكَ﴾ (Ash-Sharḥ 94:3)
ظَهِيْرٌẓahīr (pattern of فَعِيْلٌfaʿīl): one who is ever manifest; occurs in the sense of helper.
ظَهِيْرَةٌẓahīrah: noon, when the sun is fully manifest.
Form IV (ifʿāl) اَظْهَرَ يُظْهِرُ اِظْهَارًاaẓhara yuẓhiru iẓhāran: to make manifest; to make prevail. ﴿لِيُظْهِرَهُۥ عَلَي الدِّيْنِ كُلِّهِۦ﴾ (At-Tawbah 9:33)
Form III (mufāʿalah) ظَاهَرَ يُظَاهِرُ مُظَاهَرَةًẓāhara yuẓāhiru muẓāharatan: to stand back to back with one another, i.e. to back someone up; also to pronounce ẓihār (likening one's wife to one's mother's back). ﴿الَّذِيْنَ يُظٰهِرُوْنَ مِنْ نِّسَآئِهِمْ﴾ (Al-Mujādilah 58:3)
Form VI (tafāʿul) تَظَاهَرَ يَتَظَاهَرُ تَظَاهُرًاtaẓāhara yataẓāharu taẓāhuran: to back one another up; to help one another. ﴿وَاِنْ تَظٰهَرَا عَلَيْهِ﴾ (At-Taḥrīm 66:4)