ASCII Character כ

Kaph (also spelled kaf) is the eleventh letter of the Semitic abjads, including the Hebrew alphabet. Kaph is thought to be derived from a pictogram of a hand (in both modern Arabic and modern Hebrew, kaph כף means "palm" or "grip"), though in Arabic the a in the name of the letter (كاف) is pronounced longer than the a in the word meaning "palm" (كَف). The letter kaf is one of the six letters that can receive a dagesh kal. The other five are bet, gimel, daleth, pe, and tav (see Hebrew alphabet for more about these letters). When this letter appears as כ‎ without the dagesh ("dot") in its center it represents [χ], like the ch in German "Bach". In gematria, kaph represents the number 20. Its final form represents 500, but this is rarely used, tav and qoph (400+100) being used instead.