belonging to / returning, reverting

belong to / revert to

library (building)

a book / a script; a scenario / source; origin; root

just

library science

librarian, library clerk

blades of grass and tree trunks / falcons

Alternative form of 元

long cylindrical things such as glasses of drink, pairs of jeans, pens or trains and buses / films or TV shows / home runs or goals / rounds of a match in boxing, wrestling or judo