IPA: /prɪˈkoʊsɪti/
KK: /prɪˈkoʊsɪti/
The condition of developing abilities or talents at an earlier age than usual.
Her precocity in mathematics amazed her teachers, as she solved complex problems that most students her age could not.
Precocity → It is formed from "praeco" (from Latin, meaning early or premature) and the suffix "-ity" (meaning the state or quality of). The word "precocity" refers to the state of being unusually advanced or mature at an early age.
Think of someone being 'early' ('praeco') in their development — that's why precocity means being advanced for one's age.