Where does “hair-trigger” come from?

hair-trigger (English) comes from English Hair, from Middle English hēr, from Old English hēr, from Proto-West Germanic *hēr, from Proto-Germanic hē₂r, from Proto-Indo-European ḱe, from Middle English kyt, from German kitt — to bend; curve; arch; vault; to bow, bend, arch,...

hair-trigger (English): a trigger that will set off a firearm when even a...

Definitions

  1. a trigger that will set off a firearm when even a...

Ancestry of “hair-trigger”, step by step

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

via English Hair

StepLanguageWordMeaning
1EnglishHairA pigmented filament of keratin which grows from a follicle on the skin of humans and other mammals
2Middle Englishhēra hair
3Old Englishhērat this place
4Proto-West Germanic*hērhere
5Proto-Germanichē₂rhere, in this place
6Proto-Indo-EuropeanḱeDeictic particle, here; Post-positional...
7Middle Englishkyt
8Germankittputty certain kinds of cement used for fixing e.g. window panes
9Old High Germankuti
10Proto-West Germanickwidugum, resin
11Proto-Germanickweduzresin
12Proto-Indo-Europeangʷet-resin, gum; to say, speak
13Proto-Indo-Europeangū-to bend; curve; arch; vault; to bow, bend, arch,...

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-Germanic-janąDerives denominatives from nouns and factitives...
9Proto-Indo-European-yétiCreates intransitive, often deponent,...
10Proto-Indo-Europeanyé-
11Chichewaiyehe, she
Every word from Proto-Indo-European gū-