In the G͟hiyās̤u ʾl-Lug͟hah it is said that a learned man is called a Mullā because he is “filled” with knowledge; from malaʾ, “to fill.”
MUʾMIN (مومن), pl. Muʾminūn; from Īmān, “faith.” One who believes.
(1) A term generally used for Muḥammadans in the Qurʾān and in all Muslim books.
(2) Al-Muʾmin. The title of the XLth Sūrah of the Qurʾān, in the 29th verse of which the word occurs: “A man of the family of Pharaoh who was a believer, but hid his faith.”
(3) Al-Muʾmin, “The Faithful.” One of the ninety-nine names or attributes of God. It occurs in the Qurʾān, [Sūrah lix. 28]: “He is … the Faithful.”
AL-MUʾMINŪN (المومنون). Lit. “The Believers.” The title of the XXIIIrd Sūrah of the Qurʾān, in the first verse of which the word occurs: “Prosperous are the believers.”
AL-MUMĪT (المميت). “The Killer.” One of the ninety-nine names or attributes of God. It is referred to in the Qurʾān, [Sūrah ii. 26]: “He will kill you and then make you alive.”
MUMSIK (ممسك). Lit. “One who withholds, a miser.” Used for a miserly person in contradistinction to munfiq, “a liberal person.” [[MUNFIQ].]
AL-MUMTAḤINAH (الممتحنة). Lit. “She who is tried.” The title of the LXth Sūrah of the Qurʾān, from the expression in the 10th verse: “O believers! when believing women come over to you as refugees, then make trial of them.”
Al-Baiẓāwī says: “When such women sought an asylum at al-Madīnah, Muḥammad obliged them to swear that they were prompted only by a desire of embracing Islām, and that hatred of their husbands, or love of some Muslim, had not any influence on their conduct.”