IPA: /ˈsɔːrsbʊk/
KK: /ˈsɔrsˌbʊk/
A book that provides information or references for academic or research purposes, often containing primary documents or records.
The professor recommended a sourcebook for students to use in their research projects.
Sourcebook is formed from "source" (from Old French *sourcer*, meaning to rise or spring from) and "book" (from Old English *bōc*, meaning a written work or text). The word "sourcebook" refers to a book that provides sources or references for information.
Think of a 'source' as something that 'springs from' knowledge, and a 'book' as a written work. A sourcebook is a written work that springs from various sources of information.
No commonly confused words.