Where does “unmultiply” come from?

unmultiply (English) comes from English multiply, from English ply, from English apply, from Middle English aplien, from Old French applier, from Latin applicō, from Latin ad-, from Latin īn- — in.

unmultiply (English): To reverse the process of multiplication; to find...

Definitions

  1. To reverse the process of multiplication; to find...

Ancestry of “unmultiply”, step by step

unmultiply traces back through two separate lines of ancestry.

via English multiply

StepLanguageWordMeaning
1EnglishmultiplyTo increase the amount, degree or number of; To...
2EnglishplyA layer of material; A strand that, twisted...
3EnglishapplyTo lay or place; to put; To put to use; to use or...
4Middle Englishaplien
5Old Frenchapplierto bend; to apply
6Latinapplicōto apply
7Latinad-to; usually prefixed to verbs, in which cases it...
8Latinīn-un-, non-, not
9Latinînin, at, on, upon, from (space)
10Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
11Proto-Italicenin
12Proto-Indo-Europeanh₁énin

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Indo-European h₁én