惯
guàn · HSK 7
accustomed to
忄 heart + 贯 guàn (thread through) = a habit threaded through the heart
The 忄 heart radical marks it as a feeling or mental state; 贯 means to string together or pierce through and also gives the guàn sound. A habit is something strung through the heart over and over until it feels routine.
惯 — heart radical 忄 + 贯 (guàn, string of coins)
A semantic-phonetic compound. The heart radical 忄 signals a mental or emotional quality, while 贯 — originally a string threading coins together — supplies the sound and the idea of 'threading through' continuously. Together they suggest a habit: something the heart strings together repeatedly until it becomes routine.