ز ع مz-ʿ-m
(ن) زَعَمَ يَزْعُمُ زَعْمًاzaʿama yazʿumu zaʿman: to take, or assert, as certain something that is false or uncertain. ﴿زَعَمَ الَّذِيْنَ كَفَرُوْٓا اَنْ لَّنْ يُّبْعَثُوْا﴾ (At-Taghābun 64:7)
زَعْمٌzaʿm (noun, ism dhāt): supposition; opinion. ﴿فَقَالُوْا هٰذَا لِلّٰهِ بِزَعْمِهِمْ﴾ (Al-Anʿām 6:136)
زَعَامَةٌzaʿāmah (verbal noun, maṣdar): to be responsible and answerable for something; to be a guarantor; زَعِيْمٌzaʿīm (adjective on the pattern of فَعِيْلٌfaʿīl): answerable; guarantor. ﴿وَاَنَا بِهِۦ زَعِيْمٌ﴾ (Yūsuf 12:72)