What is "kaph"

n. The eleventh letter of many Semitic alphabets/abjads (Phoenician, Aramaic, Hebrew, Syriac, Arabic and others).

n. the 11th letter of the Hebrew alphabet

Kaf (also spelled kaph) is the eleventh letter of the Semitic abjads, including Phoenician Kāp , Hebrew Kāf , Aramaic Kāp , Syriac Kāp̄ ܟܟ, and Arabic Kāf / (in Abjadi order).

The Phoenician letter gave rise to the Greek kappa (Κ), Latin K, and Cyrillic К.