Where does “gammelgresk” come from?

gammelgresk (Norwegian Bokmål) comes from Norwegian Bokmål gammel, from Danish gammel, from Old Norse gamall, from Proto-Germanic gamalaz — old, weak.

gammelgresk (Norwegian Bokmål): Ancient Greek

Definitions

Ancient Greek

Ancestry of “gammelgresk”, step by step

gammelgresk traces back through two separate lines of ancestry.

via Norwegian Bokmål gammel

Step	Language	Word	Meaning
1	Norwegian Bokmål	gammel	old
2	Danish	gammel	old
3	Old Norse	gamall	old; old, aged; of a certain age
4	Proto-Germanic	gamalaz	old, weak

via Norwegian Bokmål gresk

Step	Language	Word	Meaning
1	Norwegian Bokmål	gresk	Greek
2	Old Norse	grikkskr	—

Every word from Proto-Germanic gamalaz →Every word from Old Norse gamall →Every word from Danish gammel →