What does aggrace mean?
The definition of aggrace
Ag*grace”, v. t.
Etym: [Pref. a- + grace: cf. It. aggraziare, LL. aggratiare. See Grace.]

To favor; to grace. [Obs.] “That knight so much aggraced.” Spenser.

Ag*grace”, n.
Grace; favor. [Obs.] Spenser.