ب ر مb-r-m
(ن) بَرَمَ يَبْرُمُ بَرْمًاbarama yabrumu barman: to twist a rope, to twist two strands together.
Form IV (ifʿāl) أَبْرَمَ يُبْرِمُ إِبْرَامًاabrama yubrimu ibrāman: to settle a matter firmly, to resolve decisively — hence «ibrām», the ratification of a treaty; مُبْرِمmubrim (active participle, ism fāʿil): one who resolves decisively. Twice in the Quran, in a single verse, both from form ifʿāl: ﴿أَمْ أَبْرَمُوْا أَمْرًا فَإِنَّا مُبْرِمُوْنَ﴾ (Az-Zukhruf 43:79)