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summate

[ suhm-eyt ]
/ ˈsʌm eɪt /
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verb (used with object), sum·mat·ed, sum·mat·ing.

to add together; total; sum up.

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The rainy weather could not ________ my elated spirits on my graduation day.

Origin of summate

First recorded in 1895–1900; back formation from summation
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
  • They accumulate in time, finally they summate, and exercise their influence even at the beginning of the service.

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