Where does “groaty-pudding” come from?

groaty-pudding (English) comes from English Pudding, from Middle English podynge, from Old French boudin, from Latin botellus, from Latin -lus, from Proto-Italic -elos, from Proto-Indo-European -e-lós, from Proto-Indo-European -lós — Forms agent nouns from verbal roots.

Ancestry of “groaty-pudding”, step by step

groaty-pudding traces back through two separate lines of ancestry.

via English Pudding

StepLanguageWordMeaning
1EnglishPuddingAny of various dishes, sweet or savoury, prepared by boiling or steaming or from batter
2Middle Englishpodyngesausage stuffed animal intestine
3Old Frenchboudinblood sausage, black pudding
4Latinbotellusa small sausage
5Latin-lusAlternative form of -ulus; diminutive suffix
6Proto-Italic-elosForms desubstantival and deadjectival diminutive nouns
7Proto-Indo-European-e-lós
8Proto-Indo-European-lósForms agent nouns from verbal roots

via English groaty

StepLanguageWordMeaning
1EnglishgroatyMade or consisting of groats
2EnglishgroatHulled grain; Any of various old coins of England...
3Dutchgrootbig, large, great; great, important, eminent,...
4Middle Dutchgrôotbig, large
5Old Dutchgrōtbig, large
6Proto-West Germanicgraut
7Proto-Germanicgrautazcoarse, crude; big, large
8Proto-Indo-Europeanǵʰer-to yearn for; to enclose; bowels, intestines
Every word from Proto-Indo-European -lós