What is to complete, as a legal instrument; to perform what is required to give validity to, as by signing and perhaps sealing and delivering; as, to execute a deed, lease, mortgage, will, etc called?

execute — To complete, as a legal instrument; to perform what is required to give validity to, as by signing and perhaps sealing and delivering; as, to execute a deed, lease, mortgage, will, etc. (Webster's 1913.)

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