This is the 11422nd most frequent French word.
renfermé
Reserved or withdrawn.
Here, 'renfermé' describes a person's character change towards becoming less open and more inward-focused.
Il est devenu renfermé après son échec, parlant rarement à ses amis.
He became withdrawn after his failure, rarely speaking to his friends.
In this context, 'renfermé' means to contain or hold within, referring to the book encompassing memories.
Ce livre renfermé des souvenirs précieux pour notre famille.
This book contains precious memories for our family.
Here, 'renfermé' is used to describe the chest enclosing or containing old objects physically.