Regina
Defined in 2 dictionaries — Black's (1910), Abbott (1879)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
Lat. The queen.
Dictionary of Terms and Phrases Used in American or English Jurisprudence
Benjamin Vaughan Abbott · 1879
The queen. As the queen is the source of authority in English criminal prosecutions, the proceedings in them are entitled in her name; and criminal cases during a woman's reign are reported under the caption, Regina V. So and So.