/ əˈliːdʒəns; NAmE / noun
[ U , C ] allegiance (to sb/sth) a person's continued support for a political party, religion, ruler, etc. :
to pledge / swear allegiance to sb/sth
to switch / transfer / change allegiance
an oath / a vow / a statement of allegiance
People of various party allegiances joined the campaign.
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WORD ORIGIN
late Middle English : from Anglo-Norman French , variant of Old French ligeance , from lige , liege (from medieval Latin laeticus , probably of Germanic origin), perhaps by association with Anglo-Latin alligantia alliance.