北史

Běishǐ
History of the Northern Dynasties, fifteenth of the 24 dynastic histories 二十四史 Èrshísì Shǐ, compiled by Li Yanshou 李延壽 Lǐ Yánshòu in 659 during Tang Dynasty, 100 scrolls

CEDICT

History of the Northern Dynasties (one of the official Chinese historical works in the Twenty-Four Histories canon)

Wiktionary

記載南北朝時期北朝歷史的紀傳體史書，由唐朝時的李延寿所著

維基詞典

Entry Composition

=1 北 běi
  1. north
  2. (classical) to be defeated
=1 北 bèi
  1. (obsolete on its own in Standard Chinese) Original form of 背 (bèi, “back; to betray”).
  2. Original form of 背 (bèi, “back; to betray”).
2 史 shǐ
  1. history
  2. annals
  3. title of an official historian in ancient China