Sad"ly, adv.
1.
Wearily; heavily; firmly.
[Obs.]
In go the spears full sadly in arest.
Chaucer.
2.
Seriously; soberly; gravely.
[Obs.]
To tell thee sadly, shepherd, without blame
Or our neglect, we lost her as we came.
Milton.
3.
Grievously; deeply; sorrowfully; miserably.
"He
sadly suffers in their grief."
Dryden.
© Webster 1913.