vosotro
Vosotro is not a standard or widely recognized pronoun in Spanish. It is generally regarded as a nonstandard, erroneous, or informal coinage rather than an established grammatical form. There is no entry for it in major reference grammars or dictionaries, and it is not used in formal writing or taught as part of the standard Spanish pronoun system.
In the Spanish pronoun system, the second-person singular is vos (in voseo dialects) and the second-person plural
If encountered in text, vosotro should be treated as nonstandard. In standard usage, appropriate forms would
In summary, vosotro lacks authority as a recognized Spanish pronoun and is primarily regarded as a nonstandard