com·pen·di·um
noun/kəmˈpendiəm/
/kəmˈpendiəm/
(plural compendia
/kəmˈpendiə/
/kəmˈpendiə/
, compendiums)- a collection of facts, drawings and photographs on a particular subject, especially in a book
（尤指书中某题材事实、图画及照片的）汇编，概要 Word Originlate 16th cent.: from Latin, ‘profit, saving’ (literally ‘what is weighed together’), from compendere, from com- ‘together’ + pendere ‘weigh’.