The word "恺撒" is formed through a process of phonetic transcription, where two existing Chinese characters are selected purely for their sound to mimic the pronunciation of the foreign name "Caesar". The character 恺 (kǎi) approximates the "Cae" or "Kai" sound, while 撒 (sā) approximates the "sar" sound. Beyond sound, the characters are chosen with some consideration for their neutral or mildly positive connotations, 恺 can mean "triumphant" or "genial", and 撒 means "to cast" or "to let go", which together create a dignified and suitably foreign-sounding name for the historical figure, effectively transplanting the term into Chinese as a coherent whole unit.