Webster's Revised Unabridged Dictionary · 1913

Courtly

Courtly (-l?) , adjective

[From Court.]

1.
Relating or belonging to a court.
2.
Elegant; polite; courtlike; flattering.
In courtly company or at my beads. — Shakespeare
3.
Disposed to favor the great; favoring the policy or party of the court; obsequious. — Macaulay

Courtly , adverb

In the manner of courts; politely; gracefully; elegantly.
They can produce nothing so courtly writ. — Dryden