Fromdomnia, fromdomn, fromLatindominus(“master”) +voastră, fromLatinvoster, vostra(“your”), thus initially meaning "your lordship". Compare similar constructions in Spanishusted(“you”) fromvuestra merced (cf. alsovuecencia), Portuguesevocê(“you”), Catalanvostè, etc.
dumneavoastră
Dumneavoastră (abbreviated asdv.,dvs., ord-voastră) is used in polite or formal speech in place of the plain pronounstu andvoi.Dumneavoastră always takes verbs in the second person plural forms, that is, the same forms asvoi. For example,dumneavoastrăsunteți andvoisunteți both mean "you are," but the former is polite and can take singular and plural meanings, whereas the second is informal and only used in the plural.Dumneavoastră has the same form in the genitive and dative cases as in the nominative and accusative.
Dumneavoastră is also the plural ofdumneata, a semi-polite pronoun.