> Caeso is frequently (especially in older records) spelled Kaeso. The abbreviation K. was retained to distinguish the name from Gaius, abbreviated "C."
Gaius and Gnaeus are abbreviated with C. and Cn., respectively, because the practice of abbreviating them was already established at the time the letter G, a modified C, was introduced to the Latin alphabet. Although the archaic spellings Caius and Cnaeus also appear in later records, Gaius and Gnaeus represent the actual pronunciation of these names.