Allegiance
WordNet
noun
(1) The act of binding yourself (intellectually or emotionally) to a course of action
"His long commitment to public service"
"They felt no loyalty to a losing team"
(2) The loyalty that citizens owe to their country (or subjects to their sovereign)
WiktionaryText
Etymology
aliegiaunce from legaunce "loyalty of a liege-servant to one's lord" from legeance from lege, liege "liege, servant", of origin. More at liege.