Bernice = "bring victory"
1) the eldest daughter of Herod Agrippa I. Act 12:1 - She was first married to her uncle Herod, king of Chalcis, and after his death (A.D. 48) she lived under circumstances of great suspicion with her own brother, Agrippa II, in connection with whom she is mentioned as having visited Festus on his appointment as procurator of Judea.
Part of Speech: noun proper feminine
From a provincial form of G5342 and G3529; victorious; Bernice, a member of the Herodian family: - Bernice.
These two sites give similar information, with the definition from several dictionaries and statistics on the use of the word.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root Βερνίκη; click on the second column to search for that grammatical form of the root Βερνίκη; click on the third column to search for that word and grammatical form; click on the total to search for the root Βερνίκη.