com ‧ pen ‧ di ‧ um /kəmˈpendiəm/ BrE AmE noun ( plural compendiums or compendia /-diə/) [countable]
[ Date: 1500-1600 ; Language: Medieval Latin ; Origin: Latin compendere 'to weigh together' , from com- ( ⇨ COM- ) + pendere 'to weigh' ]
1 . formal a book that contains a complete collection of facts, drawings etc on a particular subject:
a cricketing compendium
2 . British English a set of different ↑ board game s in a box