obsignation

noun

ob·​sig·​na·​tion

ˌäb(ˌ)sigˈnāshən

plural -s

: a formal ratification (as by an official seal)

Word History

Etymology

Late Latin obsignation-, obsignatio, from Latin, action of sealing, from obsignatus (past participle of obsignare to mark upon, from ob- + signare to mark) + -ion-, -io -ion

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