20th-century coinage from instantiate + -tion, itself coined 1946 from instance + -ate. The latter, in the sense "a case, an example", from Middle English instance, from Medieval Latin īnstantia (“a being near, presence; also perseverance, earnestness, importunity, urgency”), from Latin īnstāns (“urgent”); see English instant.
- (uncountable) The production of an instance, example, or specific application of a general classification, principle, theory, etc.
- (countable) Something resulting from the act of instantiating; an instance.
- (by extension, object-oriented programming) Creation of an instance of some class or template.
- “instantiation”, in OneLook Dictionary Search.