Is πληγώνω only used as an abstract verb e.g. " to hurt my feelings".
No, you can use it in the above sentene. It's added now.
Vicious = "φαύλος" and "μοχθηρός" = sinister?
Βασιλόπουλος δεν είναι συνώνυμο με πρίγκιπα;
Βασιλόπουλος is a big supermarket chain in Greece! :) Βασιλόπουλο (neuter) is a young male heir to the throne. Far less common though, maybe more literary.
:-) In traditional fairytales however most of times I find το βασιλόπυλο και η βασιλοπούλα and much less frequently ο πρίγκιπας και η πριγίπισσα