I. ˈsadlē, ˈsaad-, -li adverb
Etymology: Middle English, from sad (I) + -ly
: in a sad manner or way:
a. obsolete : in earnest : seriously , gravely , soberly
b. : with sorrow or so as to cause sorrow : sorrowfully
stood sadly beside the grave
c. : badly , deplorably
a sedan … one of whose fenders is sadly banged up — New Yorker
II. adjective
dialect England : suffering from poor health : poorly
the master's well … but the missus is very sadly — Samuel Butler †1902