Usted is the short form of what two words?
The Spanish word meaning you, Usted, is the short form of what two words?
Usted came from vuestra merced.
'Usted' is the polite usage of 'you' and you have to conjuge it with the 3rd person of the singular in verbs. "Ustedes" is the plural and you use the 3rd person of the plural in verbs .
As far as I know, is not a short form of other words.