Genealogical Glossary
Below is a glossary of common words that are frequently found in genealogical records. This is not an exhaustive list, nor does it catalog the many possible spellings or variations that can be found in old records; however, it should help to identify words found in old documents.
Online Dictionaries

There is a standard dictionary for the Spanish language made by the Real Academía Española called the Diccionario de la lengua española
Yet, since language is constantly changing, many words used in old records could have a different meaning from the common meaning used today; for this reason, dictionaries from earlier years or centuries are an excellent resource for researchers. The Real Academia Española dictionaries
*Racial Terminology Found in Latin American Genealogical Records.