🏛️Elementary Latin Unit 6 – Prepositions and Cases

Prepositions in Latin show relationships between words, indicating location, direction, time, and more. They're crucial for understanding sentence structure and meaning. Latin's case system adds complexity, with nouns and pronouns changing form based on their role in the sentence. Latin prepositions typically take either the accusative or ablative case, depending on their meaning and context. Mastering these relationships is key to forming correct prepositional phrases and understanding Latin texts. Practice and application are essential for developing proficiency in this fundamental aspect of Latin grammar.

What Are Prepositions?

  • Prepositions are words that show the relationship between a noun or pronoun and another word in a sentence
  • Indicate the spatial, temporal, or logical relationship of a noun or pronoun to the rest of the sentence
  • Usually placed before the noun or pronoun they modify (hence the term "pre-position")
  • Can be used to express location, direction, time, manner, or purpose
  • Examples of prepositions in English include "in", "on", "under", "over", "before", and "after"
    • "The book is on the table" (location)
    • "She walked through the park" (direction)

Latin Cases: The Basics

  • Latin is an inflected language, meaning the endings of nouns, pronouns, and adjectives change to show their grammatical function in a sentence
  • These different forms are called cases, and Latin has six main cases: Nominative, Genitive, Dative, Accusative, Ablative, and Vocative
    • Nominative: subject of a sentence or clause
    • Genitive: indicates possession or relationship
    • Dative: indirect object, the recipient of an action
    • Accusative: direct object, the target of an action
    • Ablative: expresses separation, instrument, or location
    • Vocative: used for direct address
  • The case of a noun or pronoun is determined by its role in the sentence and its relationship to other words, such as prepositions

Common Prepositions in Latin

  • Latin has many prepositions, each with its own meaning and usage
  • Some common prepositions include:
    • ad (to, toward)
    • ante (before)
    • apud (near, at the house of)
    • cum (with)
    • de (down from, about)
    • ex (out of)
    • in (in, on)
    • inter (between, among)
    • per (through)
    • post (after, behind)
    • prō (in front of, on behalf of)
    • sub (under)
  • Prepositions are typically followed by a noun or pronoun in a specific case, depending on the meaning and context

How Prepositions Affect Case

  • The case of the noun or pronoun following a preposition is determined by the preposition itself
  • Most prepositions in Latin take either the Accusative or Ablative case
    • Prepositions that indicate motion towards something usually take the Accusative (ad, in, sub)
    • Prepositions that indicate location or motion away from something usually take the Ablative (ab, cum, dē, ex)
  • Some prepositions can take different cases depending on their meaning
    • "in" with Accusative means "into", while "in" with Ablative means "in" or "on"
  • Memorizing which case each preposition takes is crucial for correctly forming prepositional phrases

Accusative vs. Ablative: When to Use Which

  • The Accusative case is used for the direct object of a verb and with prepositions that indicate motion towards something
    • Prepositional phrases with ad, ante, apud, in, inter, ob, per, post, and trans take the Accusative
    • Example: "Puella ad urbem ambulat" (The girl walks to the city)
  • The Ablative case is used to express separation, instrument, location, or time and with prepositions that indicate motion away from something or location
    • Prepositional phrases with ā/ab, cum, dē, ē/ex, in, prō, sine, and sub take the Ablative
    • Example: "Puella cum amicis ludit" (The girl plays with friends)
  • Some prepositions, like "in" and "sub", can take either the Accusative or Ablative depending on the meaning
    • "in" with Accusative means "into", while "in" with Ablative means "in" or "on"

Prepositional Phrases in Sentences

  • Prepositional phrases consist of a preposition and its object (a noun or pronoun) in the appropriate case
  • These phrases function as adjectives or adverbs, modifying nouns, pronouns, verbs, or other parts of the sentence
  • The position of prepositional phrases in a Latin sentence is relatively flexible, but they typically come after the word they modify
    • "Vir in urbe habitat" (The man lives in the city)
    • "Puella librum ad bibliothecam portat" (The girl carries the book to the library)
  • Prepositional phrases can also be used to express time, manner, or purpose
    • "Post bellum, pax venit" (After the war, peace comes)
    • "Cum cura labora" (Work with care)

Tricky Exceptions and Special Uses

  • Some prepositions have special meanings or idiomatic uses that don't follow the general rules
    • "tenus" (up to, as far as) follows its object and takes the Genitive or Ablative case
    • "versus" (towards) follows its object and doesn't affect the case
  • Certain verbs, such as "ūtor" (to use), "fruor" (to enjoy), "fungor" (to perform), and "potior" (to obtain), take their object in the Ablative case without a preposition
  • The prepositions "ā/ab", "ē/ex", and "dē" can also be used with the Ablative to express the agent or means by which something is done, especially with passive verbs
    • "Liber ā puellā lectus est" (The book was read by the girl)
  • Some prepositions, like "in" and "sub", have different meanings depending on the case they take
    • "in" with Accusative means "into", while "in" with Ablative means "in" or "on"
    • "sub" with Accusative means "under" or "to the foot of", while "sub" with Ablative means "under", "at the foot of", or "at the time of"

Practice and Application

  • To master the use of prepositions and cases in Latin, it's essential to practice regularly with a variety of exercises
    • Translate sentences containing prepositional phrases from Latin to English and vice versa
    • Fill-in-the-blank exercises where you provide the correct form of the noun or pronoun based on the preposition
    • Compose original Latin sentences using prepositional phrases to express different relationships and meanings
  • Pay attention to the context and meaning of the sentence when choosing the appropriate preposition and case
  • Regularly review the common prepositions, their meanings, and the cases they take
  • Analyze Latin texts, such as excerpts from classical authors or inscriptions, to identify and understand the use of prepositional phrases in authentic contexts
  • Engage in conversation or writing practice with other Latin learners or instructors to apply your knowledge of prepositions and cases in a communicative setting


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© 2024 Fiveable Inc. All rights reserved.
AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.