1570s, "endeavor to gain the favor of by amorous attention," also "solicit, seek to win or attract," from court (n.), based on the sorts of behavior associated with royal courts. Related: Courted; courting.
French, "God and my right," the watchword of Richard I at the Battle of Gisors (1195), adopted as the motto on the royal arms of England. The "right" was Edward's claim to the crown of France upon the death of his uncle, Charles the Fair, king of France, without male issue.
c. 1600, "malignant nature;" 1650s, "state of extreme malevolence, bitter enmity," from malignant + abstract noun suffix -cy. Of diseases, growths, tumors, etc., "virulence, tendency to get worse," from 1680s. In English history, "adherence to the royal party in the time of Cromwell," 1640s, from malignants, a term applied to the royalists by their enemies.
late 13c., regnen, "to hold or exercise sovereign or royal power in a state," also of God, Christ, the Virgin Mary, from Old French regner "rule, reign" (12c.), from Latin regnare "have royal power, be king, rule, reign," from regnum "kingship, dominion, rule, realm," which is related to regere "to rule, to direct, keep straight, guide" (from PIE root *reg- "move in a straight line," with derivatives meaning "to direct in a straight line," thus "to lead, rule"). Of customs, vices, etc. in a particular place, early 14c. Related: Reigned; reigning; regnal.