(ن) زَجَرَ يَزْجُرُ زَجْرًاzajara yazjuru zajran: to check with a rebuke, to drive away with a scolding.
زَجْرَةٌzajrah: a single mighty shout — of the blast of the Trumpet on the Day of Resurrection. ﴿فَاِنَّمَا هِيَ زَجْرَةٌ وَّاحِدَةٌ﴾ (Aṣ-Ṣāffāt 37:19)
زٰجِرٰتٌzājirāt (active participle, ism fāʿil, feminine plural): those who drive on with a shout. ﴿فَالزّٰجِرٰتِ زَجْرًا﴾ (Aṣ-Ṣāffāt 37:2)
Form VIII (iftiʿāl) اِزْدَجَرَ يَزْدَجِرُ اِزْدِجَارًاizdajara yazdajiru izdijāran (original form اِزْتَجَرَiztajara, the tāʾ changed to dāl): to be rebuked, to desist. ﴿وَقَالُوْا مَجْنُوْنٌ وَّازْدُجِرَ﴾ (Al-Qamar 54:9)
مُزْدَجَرٌmuzdajar (passive participle, ism mafʿūl, in the sense of a mīmī verbal noun, maṣdar mīmī): a deterrent, a warning. ﴿وَلَقَدْ جَآءَهُمْ مِّنَ الْاَنْۢبَآءِ مَا فِيْهِ مُزْدَجَرٌ﴾ (Al-Qamar 54:4)