overstudy

/ˌoʊvərˈstʌdi/
verb
  1. To study too much, especially to the point of exhaustion or reduced effectiveness.
    • She tends to overstudy before every test, spending hours on material she already knows.
    • If you overstudy for the exam, you might become too tired to think clearly.
    • Teachers warn students not to overstudy, as rest is also important for learning.
Synonyms
What does "overstudy" mean? | whatsthatwordmean | whatsthatwordmean