Short for Tres (3), Quattuor (4), Penta (5), Hex (6), Septem (7), Octo (8), Novem (9), UnDecim (11), QuattuorDecim (14) and Penta-Decem (15).
Сокращение от греческих "Tres" (3), "Quatour" (4), "Pente" (5), "Hex" (6), "Septem" (7), "Okto" (8), "Novem" (9), "UnoDecem" (11), "QuatourDecem" (14) и "PenteDecem" (15).