Where does “Teichmüller” come from?

Teichmüller (German) comes from German Müller, from Middle High German mülnære, from Old High German mulināri, from Proto-Germanic *mulīnārī, from Latin molīnārius, from Latin molīnum, from Latin molīnus, from Latin mola — to strengthen; to bind; to change, exchange.

Ancestry of “Teichmüller”, step by step

Teichmüller traces back through two separate lines of ancestry.

via German Müller

StepLanguageWordMeaning
1GermanMüllermiller
2Middle High Germanmülnæremiller
3Old High Germanmulinārimiller
4Proto-Germanic*mulīnārī
5Latinmolīnāriusmiller
6Latinmolīnuma mill
7Latinmolīnusmill
8Latinmolamillstone; mill; ground meal
9Proto-Indo-Europeanmelh₂-to grind, to crush
10Proto-Indo-Europeanmel-soft; tender; weak; to deceive; to rub
11Proto-Indo-Europeanmey-to strengthen; to bind; to change, exchange

via German Teich

StepLanguageWordMeaning
1GermanTeichpond; the Atlantic Ocean
2Middle High Germantīch
3Old High Germantīhdyke, dike; dam
4Proto-Germanic*dīk
5Proto-Germanicdīkazpool, puddle
6Proto-Indo-Europeandʰēygʷ-to stick into, pierce
Every word from Proto-Indo-European mey-