Origin: Germanic Old English prefix
Belonging has 3 different meanings across 1 category:
happiness felt in a secure relationship
"with his classmates he felt a sense of belonging"
The feeling that one belongs.
"The warm welcome from her new neighbors gave her a deep sense of belonging."
In plain English: Belonging is the feeling that you are accepted and fit right into your group of friends, family, or community without having to try too hard.
"The feeling of belonging made her feel at home in the new neighborhood immediately after moving there."
present participle of belong
"The feeling of belonging was evident as she joined her new team and felt accepted by everyone."
In plain English: To belong is to feel accepted and part of a group where you fit in naturally.
"The keys belong to my sister, so she will keep them safe until I return home."
The word belonging is formed by adding the suffix "-ing" to the verb belong. It entered English as a standard grammatical construction rather than through borrowing or semantic shift from another language.