boon

1. (archaic) That which is asked or granted as a benefit or favor; a gift or benefaction.Examples: "I gave you life. Can you not return the boon by giving me death, my lord?"; "Every good gift and every perfect boon is from above, coming down from the Father of lights, with whom can be no variation, neither shadow that is cast by turning."; "[T]he hero comes back from this mysterious adventure with the power to bestow boons on his fellow man[.]"archaic

2. (obsolete) A prayer; petition.Examples: "The wofull husbandman doth lowd complaine, / To ſee his whole yeares labor loſt ſo ſoone, / For which to God he made ſo many an idle boone."obsolete

3. (British, dialectal) An unpaid service due by a tenant to his lord.Britishdialectal

4. (Hindu mythology) A blessing, typically a supernatural power, granted to an ascetic by a god or goddess.Examples: "A telling story is that of Vikra, who, after practicing severe tapas for many years, called on Śiva, asking him to grant the boon that whosoever's head he would touch, that person would die instantly."