Where does “delam” come from?

delam (Middle Irish) comes from Old Irish dí-, from Proto-Celtic dī-, from Proto-Indo-European de — Emphatic or contrastive particle, and, but;...

Ancestry of “delam”, step by step

Step	Language	Word	Meaning
1	Old Irish	dí-	of, from
2	Proto-Celtic	dī-	from, of; clothes, clothing; from, away
3	Proto-Indo-European	de	Emphatic or contrastive particle, and, but;...