a precipice (a very steep cliff)

改まる: to be changed to something newer or better; to be renewed; to be amended; to be improved / 改まる: to be ceremonious; to be formal / 改まる, 革まる: to worsen; to be on the verge of death

后稷: Houji / 後蜀: Later Shu; Cheng Han

a male given name