This is the 2548th most frequent Arabic word.
إليهم
"إليهم" means "to them."
In this sentence, "إليهم" functions as a prepositional pronoun (to them), denoting the direction of the action towards specific individuals.
أرسل الرسالة إليهم بسرعة.
I sent the message to them quickly.
Here, "إليهم" indicates motion towards a group of people, showing that the speaker intends to approach or join them.
كان الأطفال ينتظرون أن أذهب إليهم.
The children were waiting for me to go to them.
In this context, "إليهم" specifies the recipient of the books, designating a group that receives the action of bringing.