Where does “astronomical transient” come from?

astronomical transient (English) comes from English transient, from Latin trānsiēns, from Latin trānseō, from Latin trāns, from Latin Padus, from Lepontic Bodincus, from Proto-Indo-European bʰudʰmḗn, from Proto-Indo-European dʰewbʰ- — smoke; mist, haze.

astronomical transient (English): A localized discrete transient optical spectrum...

Definitions

  1. A localized discrete transient optical spectrum...

Ancestry of “astronomical transient”, step by step

astronomical transient traces back through two separate lines of ancestry.

via English transient

StepLanguageWordMeaning
1EnglishtransientPassing or disappearing with time; transitory;...
2Latintrānsiēnstraversing, crossing
3Latintrānseōto traverse; cross, cross over; go across or over; pass, pass through, over or by
4Latintrānsacross, beyond
5LatinPadusthe River Po
6LeponticBodincus
7Proto-Indo-Europeanbʰudʰmḗnbottom
8Proto-Indo-Europeandʰewbʰ-deep
9Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via English astronomical

StepLanguageWordMeaning
1EnglishastronomicalOf or relating to astronomy; Very large; of vast...
2Middle Frenchastronomiqueastronomic; astronomical
3Latinastronomicusastronomical
4Ancient Greekἀστρονομικός
Every word from Proto-Indo-European dʰewh₂-Every word from Proto-Indo-European dʰewbʰ-Every word from Proto-Indo-European bʰudʰmḗn