The Collaborative International Dictionary of English v.0.48:

Amoroso \Am`o*ro"so\, n. [It. amoroso, LL. amorosus.]
   A lover; a man enamored.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Amoroso \Am`o*ro"so\, adv. [It.] (Mus.)
   In a soft, tender, amatory style.
   [1913 Webster]