1. A saucy, coquettish, intriguing maidservant in comedies or comic opera.
2 An actress or a singer taking such a part.
3. A young woman regarded as flirtatious or frivolous.
[French, from Provençal soubreto, feminine of soubret, conceited, from soubra, to leave aside, from Old Provençal sobrar, to be excessive, from Latin superre, from super, above. See uper in Indo-European Roots.]