Samaritan Baa and Hebrew Vav are cognates, both continuing the same Paleo-Hebrew sign at the value 6. The Samaritan name records a sound change rather than a different letter: this letter is read as b in the Samaritan tradition, which is why the standard character name for it is Baa.
Source The World's Writing SystemsPeter T. Daniels and William Bright (eds.)
Greek Upsilon and Hebrew Vav are cognates. Both continue the same Phoenician sign, which is why both carry the numeral value 6 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 Vav and Greek Upsilon continue the same Phoenician waw. The Hebrew square script descends from the Phoenician abjad through Aramaic; Greek adapted the same sign directly.
Source The World's Writing SystemsPeter T. Daniels and William Bright (eds.)
Mandaic Ushenna and Hebrew Vav occupy the same place in the twenty-two letter Aramaic sequence. Hebrew keeps the inherited noun as the letter name and the numeral value 6; 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.)
Celestial Vav is a cipher glyph standing for the Hebrew letter Vav; 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 Vav is a cipher glyph standing for the Hebrew letter Vav; 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 Vav is a cipher glyph standing for the Hebrew letter Vav; 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 Waw and Hebrew Vav stand at the same place in the twenty-two letter Aramaic sequence and carry the same letter-numeral value, 6. 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.)
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.)
Cognate letters. Arabic waw and Hebrew vav both continue the twenty-two letter Northwest Semitic alphabet, and they hold the same place in the inherited order and the same numeral value, 6. Neither is derived from the other.
Source The World's Writing SystemsPeter T. Daniels and William Bright (eds.)
Wawe and the Hebrew vav continue the Semitic w. Ge'ez keeps the w. Most Hebrew reading traditions have moved the letter to a v, which is a change in the language rather than in the script.
Source Comparative Dictionary of Ge'ez (Classical Ethiopic)Wolf Leslau