Where does “isolator” come from?

isolator (English) comes from English ‐or, from Middle English -our, from Old French -eor, from Latin -ator, from Latin -tor, from Proto-Italic -tōr, from Proto-Indo-European -tōr, from Proto-Indo-European -tor-s.

isolator (English): An electrical device that detects short circuits...

Definitions

  1. An electrical device that detects short circuits...

Ancestry of “isolator”, step by step

isolator traces back through two separate lines of ancestry.

via English ‐or

StepLanguageWordMeaning
1English‐orCreates an agent noun, often from a verb, indicating a person or object (often machines or parts of them) that do the verb or part of speech with which they are formed
2Middle English-our
3Old French-eorAlternative form of -or
4Latin-ator-ator, -er; second-person singular future passive...
5Latin-tor-er
6Proto-Italic-tōrForms agent nouns to verb stems
7Proto-Indo-European-tōrDerives agent nouns from verbs, denoting someone...
8Proto-Indo-European-tor-s

via English isolate

StepLanguageWordMeaning
1EnglishisolateTo set apart or cut off from others; To place in...
2Frenchisoléisolated; past participle of isoler; An...
3Italianisolatoisolated, secluded, cut off; remote, lonely;...
4Latininsulatusmade into an island
5Latininsularepresent active infinitive of īnsulō;...
6LatinĪnsula
7Proto-Italicenselā

Words derived from “isolator

Every word from Proto-Indo-European -tor-sEvery word from Latin -torEvery word from Middle English -our