Mandaic Ak and Hebrew Kaph occupy the same place in the twenty-two letter Aramaic sequence. Hebrew keeps the inherited noun as the letter name and the numeral value 20; 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 Kaph 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 500 recorded here is the extended mispar gadol reckoning; in standard gematria the final form counts 20, exactly as Kaph does.
Source The World's Writing SystemsPeter T. Daniels and William Bright (eds.)
Samaritan Kaaf and Hebrew Kaph are cognates at the value 20. Hebrew has a separate final form of this letter and Samaritan has none, because the five Hebrew finals are a development of the Aramaic square script and have no counterpart in the Paleo-Hebrew line Samaritan continues.
Source The World's Writing SystemsPeter T. Daniels and William Bright (eds.)
Kaf and the Hebrew kaph continue the Semitic plain k and carry the same name. Ge'ez also has a rounded, labiovelar counterpart of this letter, for which Hebrew has no equivalent at all.
Source Comparative Dictionary of Ge'ez (Classical Ethiopic)Wolf Leslau
Cognate letters. Arabic kaf and Hebrew kaph both continue the twenty-two letter Northwest Semitic alphabet, and they hold the same place in the inherited order and the same numeral value, 20. Neither is derived from the other.
Source The World's Writing SystemsPeter T. Daniels and William Bright (eds.)
Syriac Kaph and Hebrew Kaph stand at the same place in the twenty-two letter Aramaic sequence and carry the same letter-numeral value, 20. 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.)
Celestial Kaph is a cipher glyph standing for the Hebrew letter Kaph; 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 Kaph is a cipher glyph standing for the Hebrew letter Kaph; 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 Kaph is a cipher glyph standing for the Hebrew letter Kaph; 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
Greek Kappa and Hebrew Kaph are cognates. Both continue the same Phoenician sign, which is why both carry the numeral value 20 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 Kaph and Greek Kappa continue the same Phoenician kaph; both carry the numeral value 20 in their letter-number systems.
Source The World's Writing SystemsPeter T. Daniels and William Bright (eds.)