This is the 6103rd most frequent German word.
deg
"Deg" is not a German word. It may be a misspelling or abbreviation.
This illustrates the usage of 'deg' resembling an indirect object referring to 'you'.
Ich verschenke deg eine Blume.
I gift deg a flower.
Here, 'deg' functions as the subject experiencing the liking. It correlates to 'you'.
Deg gefällt das Bild an der Wand.
Deg likes the picture on the wall.
In this case, 'deg' represents 'you' as an object in the clause.