Can you dig it?

D-Words

Deliver  D letter D sooner D better.

Just a flashback from a long time ago!

I was wondering why there are so many words that start with D that mean to destroy:
decimate
destroy
devastate
demolish
denigrate
and detonate.

Also, another intriguing D word, a monosyllabic word, somewhat rare:
Delve.

Delve means to dig, uncover or pry. Can't be Greek. Must be ... ?