Where does “Mannheimerin” come from?

Mannheimerin (German) comes from German Mannheimer, from English Mannheim, from German Mannheim, from Old High German Mannenheim, from Old High German heim, from Proto-West Germanic haim, from Proto-Germanic haimaz, from Proto-Indo-European ḱóymos — to be lying down; to settle.

Ancestry of “Mannheimerin”, step by step

StepLanguageWordMeaning
1GermanMannheimerA native or inhabitant of Mannheim
2EnglishMannheim
3GermanMannheimOne of the four districts of the Grand Duchy of Baden
4Old High GermanMannenheim
5Old High Germanheimvillage, home; home; dwelling, house
6Proto-West Germanichaimhome
7Proto-Germanichaimazhome; house; village
8Proto-Indo-Europeanḱóymosof the home, belonging to the family; village,...
9Proto-Indo-Europeanḱey-to be lying down; to settle
Every word from Proto-Indo-European ḱey-Every word from Proto-Indo-European ḱóymosEvery word from Proto-Germanic haimaz