Where does “intrusion” come from?

Intrusion comes from Old French intrusion, derived from Latin intrusio, meaning the act of thrusting in or forcing oneself upon something.

intrusion (English): The forcible inclusion or entry of an external...

Definitions

  1. The forcible inclusion or entry of an external...

Ancestry of “intrusion”, step by step

StepLanguageWordMeaning
1Old Frenchintrusion—
2Latinintrusio—
3Latinintrudoto thrust in, force in
4Latinīn-un-, non-, not
5Latinînin, at, on, upon, from (space)
6Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
7Proto-Italicenin
8Proto-Indo-Europeanh₁énin

Words derived from “intrusion”

Every word from Proto-Indo-European h₁én →Every word from Latin īn- →Every word from Proto-Italic en →