From Wiktionary, the free dictionary
From igi (“tree; wood”) + ìwé (“book”), literally “tree of books”.
igi ìwé
- (figurative, colloquial) bookworm; avid reader; serious student
- Synonym: ìwé ọgbà
- Antonym: èso òdo
- igi ìwé, èso òdo ― always studying, yet always failing (literally, “tree of books, fruit of zero”)