ex opere operantis

ex ope·​re oper·​an·​tis

ek¦sōpərēˌōpəˈräntə̇s

: in virtue of the agent

—used of a sacrament considered in relation to the conditions required for its valid administration or for its worthy reception compare ex opere operato

Word History

Etymology

Medieval Latin, literally, from the work of the worker

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