～帳
～ちょう · ～chou · JLPT N2 · noun
book
📒 帳 = 巾 cloth + 長 long: a long cloth, later a bound record book
帳 first meant a curtain or hanging cloth. It came to mean a ledger or notebook, and as a suffix it marks books for writing in: 手帳 techou (pocket diary), 通帳 tsuuchou (bankbook), 電話帳 denwachou (phone book).