Level V of XX on the frequency path
Frequency rank 549 / 2,608
Mid-frequency: not on every page, but regular in books and magazines.
More common than 境 (Boundary), less common than 監 (Oversee).
A thread (糸) belongs to oneself (己) — keeping a personal thread of records tied to yourself creates your own account of history.
紀 is rank 549 of 2,608 in published Japanese.
Study 紀 →