Where does “deadbolt” come from?

deadbolt (English) comes from English Bolt, from Middle English bolt, from Old English bolt, from Old English -tūn, from Old English tūn, from Proto-West Germanic tūn, from Proto-Germanic tūną, from Gaulish dunum — smoke; mist, haze.

deadbolt (English): The part of the lock which is moved when the key...

Definitions

  1. The part of the lock which is moved when the key...

Ancestry of “deadbolt”, step by step

deadbolt traces back through two separate lines of ancestry.

via English Bolt

StepLanguageWordMeaning
1EnglishBoltnamed after an early postmaster
2Middle Englishbolt
3Old Englishboltbolt
4Old English-tūnhomestead, village, town
5Old Englishtūnenclosure, yard; place; dwelling
6Proto-West Germanictūnfence
7Proto-Germanictūnąfence; enclosure
8Gaulishdunumfort; hill, hillfort
9Proto-Celticdūnomstronghold, rampart
10Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via English dead

StepLanguageWordMeaning
1EnglishdeadNo longer living; Devoid of life; Figuratively,...
2English-enDenotes the past participle form when attached to...
3Middle English-enDenotes the past participle form when attached to...
4Old English-enmæġþ + API → mæġden; cocc + API → cycen, cicen;...
5Old Norse-innUsed to create adjectives from nouns, meaning...
6Proto-Norse-īna-
7Proto-Germanic-īnaz-en
8Proto-Indo-European-iHnosCreates adjectives of materials
9Proto-Indo-European-no-adjectival suffix
Every word from Proto-Indo-European dʰewh₂-
deadbolt — Etymology, Origin & Word History | Etymology Explorer