noun
odds and ends; every little thing; here and there
Refers to various small, scattered things or details; often used in expressions like 端々に (in various places) or 端々まで (down to the last detail).
部屋の端々にほこりがたまっていた。
Dust had accumulated in every corner of the room.
彼は契約書の端々まで注
He carefully read every last detail of the contract.
隅々 emphasizes every nook and cranny of a physical space, while 端々 can refer to both physical edges and figurative details or odds and ends.
Reduplication of 端 (はし, 'edge, end'), with the reading はしばし arising from rendaku (sequential voicing). The kanji spellings 端々 and 端端 both represent this reduplication.