duplationn.
/djuːˈpleɪʃən/ The operation of doubling.
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the world > relative properties > number > specific numbers > two > multiplication by two > [noun]
doubling1398
duplation?c1425
duplicationc1430
reduplication1592
gemination1597
redoublement1611
conduplicationa1631
ingemination1644
duplification1821
duplicability1909
?c1425 Crafte Nombrynge in R. Steele Earliest Arithm. in Eng. (1922) 15 Do away þe figure þat was doublede, & sett þere þe diget þat comes of þe duplacion.
?c1425 Crafte Nombrynge in R. Steele Earliest Arithm. in Eng. (1922) 14 This is the Chapture of duplacion... Duplacion is a doublynge of a nombre.
1543 R. Record Ground of Artes i. sig. K.vv Duplation is nothynge els but multiplyeng by 2.
1861 F. Hall in Jrnl. Asiatic Soc. Bengal 1861 (1862) 30 6 The originals in all cases double consonants which have r over them. I have simplified this duplation.
This entry has not yet been fully updated (first published 1897; most recently modified version published online June 2022).
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n.?c1425- rough-voiced
- rough-water
- rough-weather
- rough-wing
- rough-wing tortrix
- rough-winged swallow
- rough-wrought
- roughage
- roughages
- roughandready seeming
- roughandreadylooking
- roughback
- roughback fluke
- roughbacked
- roughbacked caiman
- roughbarked
- roughbearded
- roughbedded
- roughbilled pelican
- roughblustering
- roughboard
- roughboarded
- roughbore
- roughboring
- roughbound