Where does “Rentenalter” come from?

Rentenalter (German) comes from German Rente, from Old French rente, from Medieval Latin rendita, from Latin rendō, from Latin reddō, from Latin dō, from Proto-Italic didō, from Proto-Indo-European dédeh₃ti — to give.

Rentenalter (German): pension age, pensionable age age at which one qualifies to receive a pension

Definitions

pension age, pensionable age age at which one qualifies to receive a pension

Ancestry of “Rentenalter”, step by step

Rentenalter traces back through two separate lines of ancestry.

via German Rente

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

via German alter

Step	Language	Word	Meaning
1	German	alter	age, old age
2	German	Alt	alto; A type of beer, typical to the Rhineland...
3	Middle High German	alt	—
4	Old High German	alt	old
5	Proto-West Germanic	ald	old
6	Proto-Germanic	aldaz	old, grown up
7	Proto-Indo-European	h₂eltós	—
8	Proto-Indo-European	h₂él-	to grow, nourish

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