Where does “Moralpauke” come from?

Moralpauke (German) comes from German Moral, from German -īn, from Latin -īnus, from Proto-Italic -īnos, from Proto-Indo-European -iHnos, from Proto-Indo-European -no- — adjectival suffix.

Ancestry of “Moralpauke”, step by step

Moralpauke traces back through two separate lines of ancestry.

via German Moral

StepLanguageWordMeaning
1GermanMoralmoral, morality; morale
2German-īncreates the female form for many nouns for living beings; umlaut usually occurs in monosyllables, but rarely in polysyllables
3Latin-īnusof or pertaining to; -ine
4Proto-Italic-īnosof/belonging to
5Proto-Indo-European-iHnosCreates adjectives of materials
6Proto-Indo-European-no-adjectival suffix

via German pauke

StepLanguageWordMeaning
1Germanpaukeinflection of pauken: ## first-person singular...
2Middle High Germanpūke
Every word from Proto-Indo-European -no-Every word from Latin -īnusEvery word from German -īn