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8 Words That Are Older Than You Think

summand

[suhm-and, suhm-and, suh-mand] /ˈsʌm ænd, sʌmˈænd, səˈmænd/
noun
1.
a part of a sum.
Origin
1890-1895
1890-95; < Medieval Latin summandus, gerund of summāre to sum
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for summand

summand

/ˈsʌmænd; sʌˈmænd/
noun
1.
a number or quantity forming part of a sum
Word Origin
C19: from Medieval Latin summandus, from Latin summasum1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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12
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