This is the 3190th most frequent French word.
remettant
"Remettant" refers to the person who hands over or delivers something, often in the context of payments or transfers.
Here, 'remettant' acts as a present participle providing additional context about the teacher's action while making remarks.
Le professeur, remettant les copies corrigées, fit quelques remarques.
The teacher, handing back the corrected papers, made some comments.
In this sentence, 'remettant' is used as part of a gerund ('en remettant'), which describes the action of putting the book back while simultaneously realizing something.
En remettant le livre sur l'étagère, elle réalisa qu'elle l'avait lu plusieurs fois.
By putting the book back on the shelf, she realized that she had read it multiple times.
In this example, 'remettant' is again used as part of a gerund ('en remettant'), implying the act of postponing while occupying themselves with this decision.