Definition of "collection" applied to a book collection

 Merriam Webster's Unabridged Dictionary defines collection, which includes (for book collecting purposes): 

col·lec·tion noun, often attributive \ kə-ˈlek-shən  \

inflected form(s): plural -s

2  : a number of objects or persons or a quantity of a substance that has been collected or has collected often according to some unifying principle or orderly arrangement: such as

a  : an assembly of objects or specimens for the purposes of education, research, or interest

<the magnificent collection of trees — Edmund Wilson>

 Origin of COLLECTION

Middle English collectioun, from Middle French collection, from Latin collection-, collectio, from collectus (past participle of colligere to collect, amass) + -ion-, -io -ion — more at COLLECT

“collection,” Merriam-Webster's Unabridged Dictionary, https://unabridged.merriam-webster.com/unabridged/collection. Accessed 2/26/2021.

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