Where does “insulator” come from?

Insulator derives from Latin insulātor, from Latin insulātus meaning "made into an island," from Latin insula meaning "island," ultimately from Proto-Indo-European seh₂l- meaning "salt" or "to salt."

insulator (English): A substance that does not transmit heat (thermal insulator), sound (acoustic insulator) or electricity (electrical insulator)

Definitions

  1. A substance that does not transmit heat (thermal insulator), sound (acoustic insulator) or electricity (electrical insulator)

Ancestry of “insulator”, step by step

StepLanguageWordMeaning
1EnglishinsulateTo separate, detach, or isolate; To separate a...
2LatinĪnsula
3Proto-Italicenselā

Words derived from “insulator

Every word from Proto-Italic enselāEvery word from Latin ĪnsulaEvery word from English insulate