Mandaic Am and Hebrew Mem occupy the same place in the twenty-two letter Aramaic sequence. Hebrew keeps the inherited noun as the letter name and the numeral value 40; Mandaic keeps neither. Where the Mandaic shapes came from is disputed, a cursive Aramaic hand or the Parthian chancery script.
Source The World's Writing SystemsPeter T. Daniels and William Bright (eds.)
The word-final form of Mem rather than a separate letter. Hebrew writes five of its consonants differently at the end of a word, and the two shapes stand for one and the same letter. The value 600 recorded here is the extended mispar gadol reckoning; in standard gematria the final form counts 40, exactly as Mem does.
Source The World's Writing SystemsPeter T. Daniels and William Bright (eds.)
May and the Hebrew mem continue the Semitic m, one of the consonants no branch of the family has disturbed. The two letter names are the same inherited word.
Source Comparative Dictionary of Ge'ez (Classical Ethiopic)Wolf Leslau
Both signs continue the same Northwest Semitic consonant inherited from a shared abjad ancestor; this is a cognate correspondence, not a borrowing in either direction. Ugaritic and Hebrew share the same twenty-two-consonant core, with Ugaritic adding six further signs Hebrew never developed separately.
Source The World's Writing SystemsPeter T. Daniels and William Bright (eds.)
Celestial Mem is a cipher glyph standing for the Hebrew letter Mem; Agrippa's Book III prints Celestial, Malachim and Passing the River as tables of Hebrew equivalents, letter for letter.
Source Three Books of Occult PhilosophyHeinrich Cornelius Agrippa
Malachim Mem is a cipher glyph standing for the Hebrew letter Mem; Agrippa's Book III prints Celestial, Malachim and Passing the River as tables of Hebrew equivalents, letter for letter.
Source Three Books of Occult PhilosophyHeinrich Cornelius Agrippa
Passing the River Mem is a cipher glyph standing for the Hebrew letter Mem; Agrippa's Book III prints Celestial, Malachim and Passing the River as tables of Hebrew equivalents, letter for letter.
Source Three Books of Occult PhilosophyHeinrich Cornelius Agrippa
Syriac Mim and Hebrew Mem stand at the same place in the twenty-two letter Aramaic sequence and carry the same letter-numeral value, 40. The Syriac script grew out of the local Aramaic cursive of Edessa and the Hebrew square script out of the same Aramaic alphabet, so the two letters are inherited from one ancestor rather than borrowed from each other.
Source The World's Writing SystemsPeter T. Daniels and William Bright (eds.)
Samaritan Mim and Hebrew Mem are cognates at the value 40, both continuing the same Paleo-Hebrew sign. Hebrew writes a separate final form at the end of a word; Samaritan writes one shape in every position, because the finals belong to the Aramaic square script rather than to the Paleo-Hebrew line.
Source The World's Writing SystemsPeter T. Daniels and William Bright (eds.)
Cognate letters. Arabic mim and Hebrew mem both continue the twenty-two letter Northwest Semitic alphabet, and they hold the same place in the inherited order and the same numeral value, 40. Neither is derived from the other.
Source The World's Writing SystemsPeter T. Daniels and William Bright (eds.)
Greek Mu and Hebrew Mem are cognates. Both continue the same Phoenician sign, which is why both carry the numeral value 40 in their letter-number systems. A shared ancestor, not a borrowing in either direction. The Greek alphabet was adapted from the Phoenician abjad in the early first millennium BC, and the Hebrew square script descends from the same abjad through Aramaic.
Source The World's Writing SystemsPeter T. Daniels and William Bright (eds.)
Hebrew Mem and Greek Mu continue the same Phoenician mem; both carry the numeral value 40 in their letter-number systems.
Source The World's Writing SystemsPeter T. Daniels and William Bright (eds.)