本書

Noun

 * 1) this book
 * 2) original book; original work
 * 3) book of genealogy

Etymology
May be from compound. Compare modern 🇨🇬 reading běnshū, 🇨🇬 bun2 syu1, 🇨🇬 pún-sû.

Alternatively, may have been composed in Japan of 🇨🇬-derived components, as a compound of +.

Noun

 * 1) the main text
 * 2) an official document
 * 3) an original document
 * 4) a core document
 * 5) this document, this text, this book