Where does “insider” come from?

Insider derives from English inside plus the agent suffix -er, from Old French -er, from Latin -āre (infinitive marker) and -ārius (relating to or connected with), ultimately from Proto-Italic -os.

insider (English): A person who has special knowledge about the...

Definitions

  1. A person who has special knowledge about the...

Ancestry of “insider”, step by step

StepLanguageWordMeaning
1English-erA person or thing that does an action indicated...
2Middle English-eragentive suffix; agent noun suffix
3Old French-erAlternative form of -ier, verbal suffix;...
4Latin-ārefirst conjugation
5Proto-Italic-āōForms primarily denominative verbs
6Proto-Indo-European-eh₂yétiCreates iterative/ frequentative/ intensive...
7Proto-Indo-European-yétiCreates intransitive, often deponent,...
8Proto-Indo-Europeanyé-
9Chichewaiyehe, she

Words derived from “insider

Every word from Chichewa iyeEvery word from English -erEvery word from Proto-Indo-European -yéti
insider — Etymology, Origin & Word History | Etymology Explorer