The definition of allegiance means giving a promise to be loyal, or the action of actually being loyal and on someone's side.
Fidelity is defined as being loyal or faithful, or an accurate copy.
A feeling or attitude of devoted attachment and affection:
The act of devoting
(Mil., etc.) An assigned period of responsibility, as a watch or sentry duty
An act done or thing given to show the relationship between lord and vassal
Steadiness of affections or loyalties; faithfulness
The constraining power of a promise, contract, law, or sense of duty:
Find another word for fealty. In this page you can discover 15 synonyms, antonyms, idiomatic expressions, and related words for fealty, like: allegiance, fidelity, loyalty, devotion, duty, homage, constancy, faithfulness, obligation, steadfastness and divined.