More help sought - Gaelic and Germanic

I am hoping to trace the origins of a few words, I haven't been able
to come across anything so far and am reduced to begging :^)

1) Dlí ; Irish = binding principle, law.
dligheadh = law, right, Irish dlígheadh, Old Irish dliged, Welsh
dyled, dled = debt, *dligeto-n, Cornish dylly, Breton dle = debt,
*dl@.gô, I owe; Gothic dulgs; Ch.Sl dlugu


2) Fír, Fírinne ; Irish = righteousness or justice


3) Ære (aere) ; Danish = honor


4) æ (ae) ; Old English = "law" also meant "religion"


5) Dygd ; Swedish = virtue



As always, any help at all would be greatly appreciated!!!
- Aydan