Let us look at the etymology of the two aliases we use for Krishna on this Janmashtmi

[u/samperinvicta19]

[u/InternalMountain2612]

The one who keeps cow.. Herds cow.. raises cow.. Is-> gopal- go+ pal

Go- gau - > cow And Pal - > keeper, raiser

So gopal is the one who takes care of cows or keeps cow

Shri Krishna is the keeper of cows / raiser of cows

[u/InternalMountain2612]

Mormukut - mormukut pehen ne wala .. the one who wear mukut having morpankh..

That's the wing of peacock..on his crown..