gan > did

5 "O great Orgoglio, greatest under sky,

Orgoglio > "Pride" (Italian)

6 O hold thy mortal hand for lady's sake,

mortal > lethal

7 Hold for my sake, and do him not to die,

him not to die > [not put him to death; cf. 108.45:7]

8 But, vanquished, your eternal bondslave make; 9 And me, your worthy meed, unto your leman take."

meed > reward unto > as (expressing acquisition or addition) leman > lover

107.15