 These signs, collectively known as "‘alāmātu-l-ihmāl", are still occasionally used in modern Arabic calligraphy, either for their original purpose (i.e.marking letters without "i‘jām"), or often as purely decorative space-fillers.The small ک above the "kāf" in its final and isolated forms was originally "‘alāmatu-l-ihmāl", but became a permanent part of the letter.