When I was eleven and began learning Latin, I did what every good student of the language does—I memorised the cases in order: nominative, accusative, genitive, dative, ablative. This was the natural law of Latin grammar. Immutable. As certain as death and taxes. When I started Greek, the pattern was the same, minus the ablative. And so it went, unquestioned, until one day I stumbled across an American Latin course in the school library and found that it listed the cases in a different order: nominative, genitive, dative, accusative, ablative.

This was a bit like discovering a book that claimed the sun rose in the west. Who had sanctioned this nonsense? Why was he allowed near students? Yet, after some investigation, I found that this order was not an act of educational vandalism but the standard in much of the world. The order I had so dutifully learned was, in fact, just a local English convention. This raised an important question: why does Latin case order vary, and is there a defensible logic behind our way of doing things?

The Romans, surprisingly, had no official case order. Their grammarians discussed cases freely without a fixed sequence. It was only Priscian, the great Latin grammarian of very late antiquity, who referred to them in the order nominative, genitive, dative, accusative, vocative, and ablative. This order became influential in the medieval period, particularly on the continent, as Latin instruction formalised.

By the time Renaissance scholars began reviving classical learning, Latin was already a language of rules and systems rather than a living speech. The continental tradition—nominative, genitive, dative, accusative, ablative—was common in scholarly works, influenced by the structure of Greek and German, both of which placed the genitive early. Sanctius (Francisco Sánchez de las Brozas) and other grammarians saw this as a more “logical” order, grouping cases by function—nominative (subject), genitive (possession), dative (indirect object), accusative (direct object), and ablative (varied uses).

In England, however, grammarians pursued a different logic. The dominant order—nominative, accusative, genitive, dative, ablative—was chosen for pedagogical reasons, designed to group similar forms together. This is particularly clear in the first and second declensions:

 

Case First Declension                Second Declension
Nominative puella servus
Accusative puellam servum
Genitive puellae servi
Dative puellae servo
Ablative puellā servo
Nominative Plural puellae servi
Accusative Plural puellās servōs
Genitive Plural puellārum servōrum
Dative Plural puellīs servīs
Ablative Plural puellīs servīs

 

The nominative and accusative stand together because they are the most frequently used and have simple transformations from one to the other. The genitive, dative, and ablative are placed after because they share common endings and follow a distinct pattern. You will see that the dative and ablative plurals are always identical. You can use the ordering to make much lighter work of what is always hard for those brought up in an uninflected language.

Writing this essay, I have downloaded and looked at about a dozen Latin grammars published in England during the 18th and 19th centuries. They all follow the old order of nominative, genitive, dative, accusative, ablative. But the order we now used was standardised and then imposed by Benjamin Hall Kennedy in the 19th century. His Public School Latin Primer (1866) codified the nominative-accusative-genitive-dative-ablative sequence, ensuring that it became the dominant order in English-speaking education outside the United States, where German immigrants had taken over classics teaching. Kennedy’s influence was so great that this ordering was immediately extended to Greek instruction in England and soon after to other inflected languages, such as German and Russian. Today, it is hegemonic. Anyone in England who learns an inflected language encounters this order exclusively, with no exposure to any alternative system.

The continental order has its defenders. Heinrich Keil, in his edition of Priscian, notes that the nominative-genitive-dative-accusative-ablative sequence aligns with syntactic function. Karl Lachmann, in his studies of Latin manuscripts, suggests that classical texts implicitly favour this structure. The Germans, ever fond of a systematic approach, found this order more consistent with Indo-European grammar.

Yet, for practical Latin instruction, the English system is superior. It presents cases in a way that reflects how students encounter them in real texts. The nominative and accusative are the most common and crucial for understanding basic sentence structure. The genitive, dative, and ablative, often more complex in meaning and usage, come later, once the basics are secured. Some of my American friends who are studying Latin or Greek or both agree that the Kennedy order makes better sense than the order they must follow at school. One has switched over and is nagging his teacher to do the same in lessons.

Moreover, the English order mirrors Latin word order. Latin is a subject-object-verb language in many of its natural constructions. By placing the nominative and accusative together, students internalise this structure more easily. This is especially helpful in early exercises where sentences tend to be simple and formulaic.

Language learning is shaped by tradition, and traditions persist when they work. The nominative-genitive-dative-accusative-ablative order might make sense to scholars who prioritise theoretical clarity, but the English order is practical, effective, and deeply ingrained. The Romans never set an official order, and medieval grammarians muddled through with different systems. Yet, for actual students of Latin, the English arrangement remains the best. It groups similar endings together, reflects real Latin usage, and follows a pattern that has served generations of learners well. If it was good enough for Kennedy, it’s good enough for me.

Reading List

  • Allen, W. Sidney. Vox Latina: A Guide to the Pronunciation of Classical Latin. Cambridge: Cambridge University Press, 1965.
  • Allen, W. Sidney, and C. O. Brink. “The Old Order and the New: A Case History.” Lingua 50 (1980): 61–100.
  • Keil, Heinrich. Grammatici Latini, Vol. 1. Leipzig: Teubner, 1855.
  • Kennedy, Benjamin Hall. Revised Latin Primer. London: Longmans, Green & Co., 1879.
  • Lachmann, Karl. Über die Reihenfolge der Casus in lateinischen Grammatiken. Berlin: Weidmann, 1861.
  • Lily, William. Rudimenta Grammatices. London: Thomas Berthelet, 1542.
  • Priscian. Institutiones Grammaticae, edited by Heinrich Keil. Leipzig: Teubner, 1855.
  • Sanctius, Francisco. Minerva, seu de causis linguae Latinae. Salamanca: Renaut, 1587.