Where does “thunderbolt” come from?

Thunderbolt derives from English thunder and bolt, with bolt tracing to Middle English bulten, Old English bolt, and Proto-Germanic bultaz, ultimately from Proto-Indo-European bʰew- and (s)ten-.

thunderbolt (English): A flash of lightning accompanied by a crash of...

Definitions

  1. A flash of lightning accompanied by a crash of...

Ancestry of “thunderbolt”, step by step

thunderbolt 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 thunder

StepLanguageWordMeaning
1EnglishthunderThe loud rumbling, cracking, or crashing sound...
2Middle EnglishthunderAlternative form of thonder
3Old EnglishÞunorthe Anglo-Saxon god of thunder, equivalent to Old Norse Þórr and Old High German Donar
4Proto-West Germanicþunrthunder
5Proto-GermanicÞunrazThor, god of thunder
6Proto-Indo-European(s)ten-to thunder, rustle, rumble, drone, groan; to...

Words derived from “thunderbolt

Every word from Proto-Indo-European dʰewh₂-