Origin: Latin suffix -ate
Surrogate has 6 different meanings across 2 categories:
someone who takes the place of another person
"After her mother fell ill, their aunt stepped in as a surrogate to care for the three grandchildren during the summer break."
A substitute (usually of a person, position or role).
"The company hired a surrogate CEO to lead the team while the actual leader was recovering from surgery."
To replace or substitute something with something else; to appoint a successor.
"The committee appointed a surrogate chairperson to lead the meeting while the original president was away on vacation."
Of, concerning, relating to or acting as a substitute.
"The hospital assigned a surrogate mother to carry the baby for the couple who couldn't conceive naturally."