summative

[suhm-uh-tiv]
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Origin of summative

1880–85; < Medieval Latin summāt(us) (see summation) + -ive
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018


Word Origin and History for summative
adj.

1836, from Modern Latin summat-, stem of summatus (see summation) + -ive.

Online Etymology Dictionary, © 2010 Douglas Harper