effected
v.v. to make something happen or to bring about a change. You use this in formal writing when someone successfully completes a difficult task.
v. to bring about or accomplish a result; to make happen. Transitive — requires a direct object, typically a noun phrase representing a change, repair, or policy.
The new manager effected several changes in the office.
The technician effected the necessary repairs to the server, restoring the network within an hour.
The diplomat worked tirelessly for months and finally effected a ceasefire between the two warring factions, marking a significant breakthrough in the peace process.
The verb is transitive and takes a direct object. It is often confused with 'affect', which means to influence rather than to bring about.
The policy affected a changeThe policy effected a changeLearners often use 'affect' (to influence) when they mean 'effect' (to bring about/create). Use 'effected' when the subject is the direct cause of the result.