백
baek · TOPIK 1
hundred
💯 백 = hanja 百, same root as Chinese bǎi; baek to back: 100 and count again
백 is the Sino-Korean reading of 百 (hundred), cognate with Mandarin bǎi and Japanese hyaku. Sound hook: baek sounds like back — reach a hundred and you go back to counting from one. It stacks like a digit: 이백 = 200, 삼백 = 300.