Where does “Leierkastenmann” come from?

Leierkastenmann (German) comes from German Leierkasten, from German kasten, from Middle High German kaste, from Old High German kasto, from Proto-West Germanic kastō, from Proto-Germanic kazą, from Proto-Germanic kas- — to throw; bring up; toss.

Ancestry of “Leierkastenmann”, step by step

Leierkastenmann traces back through two separate lines of ancestry.

via German Leierkasten

StepLanguageWordMeaning
1GermanLeierkastenbarrel organ
2Germankastencrate (e.g. for bottles)
3Middle High Germankaste
4Old High Germankastobox, case
5Proto-West Germanickastōbox, case
6Proto-Germanickaząvessel, vat, tub, barrel
7Proto-Germanickas-to throw; bring up; toss

via German mann

StepLanguageWordMeaning
1Germanmannman, male human being
2Middle High Germanmanman
3Old High Germanmanman
4Proto-Germanic*mann-
5Proto-Indo-Europeanmen-to think, mind; spiritual activity; to stay,...
Every word from Proto-Germanic kas-Every word from Proto-Germanic kaząEvery word from Proto-West Germanic kastō