Language isn’t static: it changes, transforms and evolves at the pace of the societies that use it. In the case of Spanish, one of the most notable transformations has been the progressive transition of certain formal and reverential formulas towards more colloquial, everyday uses. This phenomenon, which some describe as the «democratisation» of language, has left its mark on the way we address others, both in informal and more structured contexts.
In this small space, we will take a journey through the history and language of some formal or polite expressions that, over time, have adopted forms that are closer to common speech. From vuestra merced to usted, from vos reverencial to vos rioplatense, the evolution of formal Spanish reveals a great deal about the cultural, social and political changes of recent centuries.
However, it should be added that these transformations have not been seen across the board: Spanish, as a language spoken in a wide territorial mosaic, shows a remarkable geographical diversity in the use and evolution of its forms of address, especially if we compare the dialectal varieties of peninsular Spanish with those of Latin American Spanish.
Respect and politeness as structuring principles of language
For much of the history of Spanish -particularly in the period between the 16th and 18th centuries- the use of language was marked by the principle of hierarchy. The strongly stratified social relations of the Ancien Régime required linguistic formulae that reflected the status of the interlocutors. Speech was not simply a means of communication, but also an instrument to recognise authority, lineage or social position.
Thus, expressions such as vuestra merced, su señoría or vuestra excelencia not only fulfilled a communicative function, but also a symbolic one. To say vuestra merced was to affirm the social distance and the respect due to a person of higher rank.
Case example: vuestra merced
One of the most revealing examples of this evolution is the expression vuestra merced. It was commonly used to address a person of higher social status or simply someone to whom respect was owed, such as a hierarchical superior, a nobleman or a member of the clergy. However, the passage of time transformed this formula of deference into a progressive contraction (vuesa merced, vuarced, vusted) which gave rise to the form usted.
This phonetic transformation was accompanied by a functional change: what was once a reverential form became a neutral form of address in formal or unfamiliar contexts. Today, usted is the standard form of address for people with whom we are not personally connected, but it no longer implies aristocratic deference.
The expression vuestra merced, although it has fallen into disuse in most everyday contexts of modern Spanish, is still preserved -or survives- in certain specific contexts, in ceremonial or ecclesiastical language or in the literary recreation of works that seek to reflect the Spanish of yesteryear. Cases have also been documented in rural areas of countries such as Colombia, Ecuador or Guatemala where the expression or some derived form can still be heard among older people, mixed with other forms such as sumercé. In this respect, Colombia represents a particular case, since in the Andean region (Cundinamarca, Boyacá), it is still common to hear the use of sumercé as a form of courtesy or respect, especially in rural or family environments.
From reverential vos to voseo
Another interesting case is that of the pronoun vos, which originally also had a reverential value. In the Middle Ages, vos was used to address people of high rank, while tú was reserved for equals or inferiors. However, over time and in different regions of the Hispanic world, vos experienced divergent fates.
In Spain, vos was progressively displaced by usted in formal contexts and by tú in informal contexts. However, in several Latin American countries -such as Argentina, Uruguay, Paraguay, parts of Bolivia, and certain parts of Central America- vos became established as a colloquial form of address.
This phenomenon, known as voseo, represents a kind of role reversal: what was once an elevated form became a mark of closeness, trust and regional identity. Voseo is not only grammatically distinct (it conjugates verbs in a particular way: vos tenés, vos querés), but it has also become a cultural symbol of belonging.
Politeness formulas in decline
Other expressions of respect have followed similar paths. Expressions such as su señoría (your lordship), vuestra alteza (your highness), mi amo (my master) or mi señora (my lady) have almost completely withdrawn from common speech, surviving only in legal, historical or theatrical contexts. Their displacement reflects the weakening of the rigid hierarchical structures that made them necessary.
Even some persisting expressions have changed in tone: saying su majestad (your majesty), su excelencia (your excellency) or su eminencia (your eminence) outside institutional or religious contexts can be interpreted as sarcasm or exaggeration.
Phrases such as aquí su seguro servidor (your faithful servant here), su excelencia ha hablado (your excellency has spoken), or como diga su merced (as your honour says) may appear in everyday conversation with an obvious jocular tone. Far from their original use, these formulas have been redefined to express the opposite: a lack of seriousness or a veiled criticism of unnecessary formalities.
This irony is another example of how language evolves according to social values: what was once a sign of respect can now be perceived as pomposity or hypocrisy.
Vestiges of polite language in the institutional context. The case of Spain
In the institutional context, especially within the Spanish parliamentary monarchy and in official acts of state, traditional politeness formulas that reflect centuries of protocol and hierarchy survive. Expressions such as Su Majestad (Your Majesty – to refer to the king or queen), Su Alteza Real (Your Royal Highness – for princes and princesses), Su Excelencia (Your Excellency – used for high State authorities, such as ambassadors or heads of government) or Su Señoría (Your Lordship – to refer to deputies in Congress) continue to be used both in spoken language and in protocol documentation. These references are an integral part of institutional ceremony and reflect not only respect for the figure they embody, but also the continuity of a linguistic tradition that has been able to adapt to time without losing its solemnity.
The evolution of formal Spanish does not imply a loss of respect, but a change in the way it is expressed. Whereas in the past, respect was expressed through rigid and hierarchical linguistic structures, today it is channelled through empathy, adaptation to the context and communicative clarity.
The old formulas, although displaced or transformed, continue to retain historical and cultural value. Studying them not only allows us to better understand our language, but also to reflect on how they have changed our ways of living together, of addressing others and of building community through words.
Carlos Sánchez Luis