well thumbed

US /ˌwel ˈθʌmd/
UK /ˌwel ˈθʌmd/
"well thumbed" picture
1.

corné, usé

having been read or handled a lot and consequently soiled or damaged

:
His favorite book was old and well thumbed.
Son livre préféré était vieux et corné.
The dictionary on the shelf was clearly well thumbed.
Le dictionnaire sur l’étagère était clairement très consulté.