百 (hundred) + 夫 (man) + 长 (chief). The standard Chinese translation of Latin 'centurio'. Also describes ancient Chinese officers commanding 100 men (mentioned in 《尚书》 as 百夫之长). Modern usage is mostly Roman-history and games.
culture
The 'Centurion' tank (英国百夫长坦克 — Britain's Cold-War-era main battle tank) and Pixar's 'Centurion' references all use 百夫长 in Chinese.