Bliss"ful*ly

from The Collaborative International Dictionary of English v.0.48

Blissful \Bliss"ful\, a.
   Full of, characterized by, or causing, joy and felicity;
   happy in the highest degree. "Blissful solitude." --Milton.
   -- {Bliss"ful*ly}, adv. -- {Bliss"ful*ness}, n.
   [1913 Webster]