重复
chóngfù · HSK 2
repeat
🔁 重 (heavy/again) + 复 (return/repeat) = do it again
重 carries the 'again' sense (as in 重新 'anew'), and 复 means 'return' or 'repeat' (as in 复习 'review'). Stacking two 'again' morphemes intensifies the meaning to 'repeat' or 'duplicate'.
重 — person 人 + east 東 (phonetic)
Originally depicted a person carrying a heavy bundle on their back, suggesting weight and burden. The 東-like element served as a phonetic component. Over time the character split into two readings: zhòng meaning 'heavy' and chóng meaning 'repeat/again'.