tribute

n. tax, levy; gift, offering, compliment

A tribute (from Latin tribulum, contribution) is wealth one party gives to another as a sign of respect or, as was often case in historical contexts, of submission or allegiance. It also incorporated certain aspects of regulated trade in goods and services between the parties under a contractual relationship formed upon duress, and based upon the potential for threats if specific performance did not occur.
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Noun
1. something given or done as an expression of esteem
(synonym) testimonial
(hypernym) approval, commendation
2. payment by one nation for protection by another
(hypernym) payment, defrayal, defrayment
3. payment extorted by gangsters on threat of violence; "every store in the neighborhood had to pay him protection"
(synonym) protection
(hypernym) extortion

n. tribute, due, tax, toll; tallage, tax paid by a tenant to his feudal lord

v. pay tribute