Where does “unsubtract” come from?

unsubtract (English) comes from English subtract, from Latin subtractus, from Latin subtrahō, from Latin sub-, from Proto-Indo-European upó, from Proto-Indo-European h₃ewp-.

unsubtract (English): To reverse the process of subtraction

Definitions

  1. To reverse the process of subtraction

Ancestry of “unsubtract”, step by step

unsubtract traces back through two separate lines of ancestry.

via English subtract

StepLanguageWordMeaning
1EnglishsubtractTo remove or reduce; especially to reduce a...
2Latinsubtractusremoved, withdrawn, subtracted
3Latinsubtrahōto pull out from under
4Latinsub-under, sub
5Proto-Indo-Europeanupóunder, below
6Proto-Indo-Europeanh₃ewp-

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Indo-European h₃ewp-
unsubtract — Etymology, Origin & Word History | Etymology Explorer