W sings donna Anna
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With Giovanni's departing oath to help find the Commendatore's murderer, Anna suddenly recognizes Giovanni as her seducer and also his murderer. (Anna aria: "Or sai chi l'onore -- He is the one who robbed me of my honour"). Ottavio, not convinced, determines to keep an eye on his friend.

Or sai chi l'onore
Now you know who sought

Rapire a me volse,
to steal my honor,

Chi fu il traditore
who was the betrayer

Che il padre mi tolse.
who killed my father:

Vendetta ti chiedo,
I ask you vengeance,

La chiede il tuo cor.
your heart asks it too.

Rammenta la piaga
Remember the wound

Del misero seno,
gaping in his poor breast,

Rimira di sangue
recall the earth

Coperto il terreno.
covered with his blood,

Se l'ira in te langue
if ever the wrath of a just fury

D'un giusto furor.
should weaken in you.