to affiliate
verb/ɐfiliˈaɾ/medium
a·fi·li·ar
Definition
To officially attach or connect (a person or organization) to a larger group.
She decided to affiliate with the local historical society.
The union voted to affiliate the new chapter.
Common collocations
to affiliate with a partyto affiliate a new member
Etymology
Do latim 'affiliare', de 'ad-' + 'filius' (filho).