How did the vos personal pronoun come to be? Is it etymologically related to vosotros in any way? Did it develop before or after the other personal pronouns used today (tú, usted, vosotros, etc)? Was ...
In English polite form of address is "You" which is second person singular and plural. In Russian it is "Вы" which is plural second person. In Spanish (and probably French and Italian) polite address ...
What is the etymology of the pronoun "usted"? What formal pronouns existed before, and when did the current "usted" come into existence?