What's the difference between i.e. and e.g.?
early 12c., from Old French estudier "to study" (French étude), from Medieval Latin studiare, from Latin studium "study, application," originally "eagerness," from studere "to be diligent" ("to be pressing forward"), from PIE *(s)teu- "to push, stick, knock, beat" (see steep (adj.)). The noun meaning "application of the mind to the acquisition of knowledge" is recorded from c.1300. Sense of "room furnished with books" is from c.1300. Study hall is attested from 1891, originally a large common room in a college. Studious is attested from late 14c.
study stud·y (stŭd'ē)
Research, detailed examination, or analysis of an organism, object, or phenomenon. v. stud·ied, stud·y·ing, stud·ies
To research, examine, or analyze something.