Where does “trigger-happy” come from?

trigger-happy (English) comes from English trigger, from Dutch trekker, from Dutch trekken, from Middle Dutch trecken, from Old Dutch trecken, from Proto-West Germanic *trakkjan, from Proto-Germanic trakjaną, from Proto-Germanic trekaną — to pull; to drag, scrape.

trigger-happy (English): Having a tendency or desire to shoot a firearm...

Definitions

  1. Having a tendency or desire to shoot a firearm...

Ancestry of “trigger-happy”, step by step

trigger-happy traces back through two separate lines of ancestry.

via English trigger

StepLanguageWordMeaning
1EnglishtriggerA finger-operated lever used to fire a gun; A...
2Dutchtrekkerpuller; trigger; tractor
3Dutchtrekkento pull, to draw; to manage, to have the strength...
4Middle Dutchtreckento pull or draw to oneself; to go to another...
5Old Dutchtrecken
6Proto-West Germanic*trakkjanto drag
7Proto-Germanictrakjanąto drag
8Proto-Germanictrekanąto push; to drag; to scratch
9Proto-Indo-Europeandreg-to pull; to drag, scrape

via English happy

StepLanguageWordMeaning
1EnglishhappyHaving a feeling arising from a consciousness of...
2Middle Englishhappyfortunate, happy
3Middle English-yDesignates an adjective, in many cases formed by...
4Old English-iġ-y, -ic
5Proto-West Germanic-gForms adjectives from nouns and verbs with a...
6Proto-Germanic-gaz-y
7Proto-Indo-European-ḱos-y, -ic

Words derived from “trigger-happy

Every word from Proto-Indo-European dreg-