Where does “time bomb” come from?

time bomb (English) comes from English Time, from Middle English tyme, from Old French thym, from Latin thymum, from Ancient Greek θύμον, from Ancient Greek θύω, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

time bomb (English): A bomb that has a mechanism such that detonation can be preset to a particular time

Definitions

  1. A bomb that has a mechanism such that detonation can be preset to a particular time

Ancestry of “time bomb”, step by step

time bomb traces back through two separate lines of ancestry.

via English Time

StepLanguageWordMeaning
1EnglishTimeThe inevitable progression into the future with the passing of present and past events
2Middle Englishtymethyme; time; A specific duration or period of...
3Old Frenchthym
4Latinthymumthyme; accusative singular of thymus
5Ancient Greekθύμονthyme
6Ancient GreekθύωI offer in sacrifice, slay, burn, immolate; I...
7Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via English bomb

StepLanguageWordMeaning
1EnglishbombAn explosive device used or intended as a weapon;...
2Frenchbombérounded, convex; past participle of bomber
3Italianbombabomb
4Italianbombobumblebee; buzzing
5LatinbombusA buzz or humming sound
6Ancient Greekβόμβοςany deep, hollow sound, humming, buzzing,...
Every word from Proto-Indo-European dʰewh₂-Every word from Ancient Greek θύωEvery word from Ancient Greek θύμον
time bomb — Etymology, Origin & Word History | Etymology Explorer