Where does “cloudsuck” come from?

cloudsuck (English) comes from English cloud, from Middle English cloud, from Old English clūd, from Proto-West Germanic klūt, from Proto-Germanic klūtaz, from Proto-Indo-European gelewdos, from Indo-European *gel-.

Ancestry of “cloudsuck”, step by step

cloudsuck traces back through two separate lines of ancestry.

via English cloud

StepLanguageWordMeaning
1EnglishcloudA rock; boulder; a hill; A visible mass of water...
2Middle EnglishcloudA small elevation; a hill; A clod, lump, or...
3Old Englishclūdmass of stone, rock, boulder, hill; rock, boulder
4Proto-West Germanicklūt
5Proto-Germanicklūtazlump, clod; boulder, rock; hill
6Proto-Indo-Europeangelewdos
7Indo-European*gel-

via English suck

StepLanguageWordMeaning
1EnglishsuckAn instance of drawing something into one's mouth...
2Middle EnglishsoukenTo suck; to extract or draw with the mouth; To...
3Old Englishsūcanto suck
4Proto-West Germanicsūkanto suck; to suckle
5Proto-Germanicsūkanąto suck; to suckle
6Proto-Indo-Europeansug-
7Proto-Indo-Europeansew-to press out, extract; juice; liquid, rain; to...
Every word from Indo-European *gel-Every word from Proto-Indo-European gelewdosEvery word from Proto-Germanic klūtaz