=1

芸

yún

common rue (Ruta graveolens) (used in old compounds relating to books because in former times rue was used to protect books from insect damage)

=1

芸

yún

used in 蕓薹 yúntái

=2

帙

zhì

book cover

=2

帙

zhì

variant of 帙 zhì variant of 秩 zhì (classifier) ten years