Where does “Rentnerin” come from?

Rentnerin (German) comes from German Rentner, from German Rente, from Old French rente, from Medieval Latin rendita, from Latin rendō, from Latin reddō, from Latin dō, from Proto-Italic didō — to give.

Rentnerin (German): female pensioner

Definitions

female pensioner

Ancestry of “Rentnerin”, step by step

Step	Language	Word	Meaning
1	German	Rentner	pensioner
2	German	Rente	pension, retirement pay
3	Old French	rente	income
4	Medieval Latin	rendita	—
5	Latin	rendō	—
6	Latin	reddō	to give back, return, restore
7	Latin	dō	to give
8	Proto-Italic	didō	give
9	Proto-Indo-European	dédeh₃ti	to be giving
10	Proto-Indo-European	deh₃-	to give

Every word from Proto-Indo-European deh₃- →Every word from Proto-Indo-European dédeh₃ti →Every word from Proto-Italic didō →