Where does “megadisaster” come from?

megadisaster (English) comes from English disaster, from Middle French desastre, from Italian disastro, from Italian astro, from Latin astrum, from Ancient Greek ἄστρον, from Ancient Greek ἀστήρ, from Proto-Hellenic astḗr — to be/become dry; to burn, to glow; hearth.

megadisaster (English): An unexpected natural or man-made catastrophe of...

Definitions

  1. An unexpected natural or man-made catastrophe of...

Ancestry of “megadisaster”, step by step

megadisaster traces back through two separate lines of ancestry.

via English disaster

StepLanguageWordMeaning
1EnglishdisasterAn unexpected natural or man-made catastrophe of...
2Middle Frenchdesastredisaster
3Italiandisastrodisaster; first-person singular present...
4Italianastrocelestial body, star; A person exceptionally...
5Latinastruma star
6Ancient GreekἄστρονA celestial body
7Ancient Greekἀστήρa celestial body; illustrious person; starfish
8Proto-Hellenicastḗrstar
9Proto-Indo-Europeanh₂stḗrstar
10Proto-Indo-Europeanh₂eHs-to be/become dry; to burn, to glow; hearth

via English mega

StepLanguageWordMeaning
1EnglishmegaVery large; great; excellent
2Ancient Greekμέγαςbig, large; great, mighty, loud; marvelous,...
3Proto-Indo-Europeanmeǵh₂sgreat
Every word from Proto-Indo-European h₂eHs-Every word from Proto-Indo-European h₂stḗrEvery word from Proto-Hellenic astḗr