Whether English, Latin, or Sanskrit, NOUNS consist of people, places, and things. Nouns have many functions in sentences, including SUBJECT, DIRECT OBJECT, POSSESSIVE, and INDIRECT OBJECT.
While English relies on word order to determine function, Latin relies on CASES.
Each case has specific functions that it performs in a sentence. If you can determine the CASE of a Latin noun, you can identify how it functions in the sentence.
Nominative (subject)
SUBJECT: The primary function of the Nominative Case is to be the SUBJECT of the sentence.
Example: The dog wags her tail
PREDICATE: The nominative is also used when there is a linking verb equating the subject with the predicate.
Example: The dog is my friend
Genitive (of)
POSSESSION: The primary function of the genitive case is to show POSSESSION.
My friend's dog is nice. That cat is a friend of my dog.
In English we show possession with an apostrophe (') s or using the preposition of
Other Genitives (Latin 3 and Higher)
with Certain Adjectives
Plenus, a, um: full (of) Urbs erat plena populī = the city was full of people
Partitive Genitive (Genitive of the Whole)
A genitive is used to denote the whole to which a part belongs Cives deīs partem cibī dederunt = citizens gave part of the food to the gods
Genitive of description:
attributes a quality to a noun, usually physical
Diana dea magnae bellae est: Diana is a goddess of great beauty
This genitive is normally accompanied by an adjective
Objective Genitive
When a noun has a verbal quality to it (love, hate, desire, etc.) the object of that noun goes into the genitive case. We still use the preposition “of”
Amor patriae militem hortatur (Love of Country encourages the soldier)
Genitive with Causā
Genitive noun + causā. Translates as FOR THE SAKE OF (GENITIVE)
Genitive with Verbs
Verbs of remembering (memini) and forgetting (obliviscor) take a genitive object
Verbs or charging or accusing take a genitive object
Dative (to / for)
INDIRECT OBJECT: The primary function of the dative case is to serve as the INDIRECT OBJECT, that it the person (or entity) that receives the direct object
Example: I give my homework to the dog. I throw my dog a treat.
The Dative Case is usually partnered with the English Prepositions to or for. It is typically a person or person-like entity (animal, nation, city). It does not take a preposition in LATIN.
Other uses of the Dative (for Latin 3 and higher)
Possession
Used when referring to personal possessions (names, hair, clothes); partnered with a form of TO BE
Nomen mihi Marcus est = my name is Marcus (the name for me is Marcus)
with Certain Adjectives
Carus, a, um: dear (to); Gratus, a, um: pleasing (to); Similis, is, e: similar (to)
Discipuli sunt cari magistrae = the students are dear to the teacher
with Verbs
Translates as if the direct object of the sentence
Verbs that create specific relationships between the subject and the object: impero, servio, adiuvo (to help)
Milites civibus adiuvabant = the soldiers were helping the citizens
Compound verbs whose meaning differs substantially from the original: occurro (to meet), praesto (to surpass)
Milites hostibus in bellō occurrunt = the soldiers are meeting the enemy in battle
Reference
Translates as TO or FOR; Describes from whose perspective a statement is true
Mihi Cicero est pulcher = to me, Cicero is handsome
Purpose
Explains for the purpose of an action; usually with verbs of motion
Agent
Used almost exclusively with passive periphrastics; translate as "by ____"
Advantage/Disadvantage
The dative case is used to denote who is benefitting (or being harmed by) the action of the sentence. We typically translate as “for”
Militēs populō pugnavērunt (the soldiers fought for the people)
Accusative (direct object)
DIRECT OBJECT: The primary function of the Accusative case is to serve as the DIRECT OBJECT. This is the noun that receives the action of the verb
I love my dog. I read books. I make a salad. I throw a stick. I praise honesty.
Object of the preposition: ALL Latin prepositions (besides pro, sine, cum, ab, ex, and de) take an ACCUSATIVE OBJECT.
PLACE TO WHICH:ad (to/toward), in (into), and sub (under) followed by an ACCUSATIVE object. Always partnered with a verb of motion. Examples: My dog runs into the street. I walk my dog to the park. We ran under the awning when it started raining.
Other uses of the ACCUSATIVE (Latin 2 and higher)
Subject of Indirect Statement
Head Verb + Accusative Subject + infinitive
Minerva monstrat se deam esse = Minerva shows that she is a goddess
Purpose
Identified by context. “ad” + the accusative. Often the accusative is the gerund or gerundive. Translate: “for the purpose of” or “for”
Supine of Purpose. When the Supine is put in the accusative case with a verb of motion, it is designating purpose.
Duration of time
Translate as FOR. Answers for how long something was done. No preposition
Navigavimus trēs horas = we sailed for 3 hours
Ablative (by / with / in / out of / from / at)
The ABLATIVE is the MOST dynamic of the cases with lots of different functions. In English, it generally falls under the heading of "object of the preposition". However, in Latin we classify it more discreetly based on the information it provides. To successfully determine the function of an ablative noun you must consider WHAT KIND of noun it is (person, place, thing) and if there is a LATIN PREPOSITION
Only the following LATIN PREPOSITIONS can take an ablative object: SUB, IN, DE, SINE, PRO, AB, CUM, EX (sid space)
For translating the ablative, a default hint is to apply BWIOFA. Go through the list of these English prepositions (By, With, In, On or Out of, From, At). Use the one that sounds best!
Ablatives learned in Latin 1
Location in space and time (PLACE)
Place Where:IN or SUB. Noun = place. translate as in, on, under
Place from Which: AB/A, E/EX, DE. Noun = place. translate as from, out of, away from, down from
Time: NO PREPOSITION in Latin. Noun = time word. translate as at, on, in, within [taught in Latin 2]
Relationship (PERSON)
Accompaniment: CUM or SINE. Noun = person. translate as with or without
Agent: A/AB. Noun = person, always with a passive verb or participle. translate as by [taught in Latin 2]
Method (THING)
Means: NO PREPOSITION in Latin. Noun = physical thing/object. translate as by or with
Manner: NO PREPOSITION in Latin (when partnered with an adjective it uses the preposition CUM). Noun = intangible thing, abstract quality (courage, honor). translate as with
Cause: NO PREPOSITION in Latin. Noun = thing. translate as because or on account of
Ablatives learned in Latin 2
Agent
preposition a/ab. Noun is a person; verb/participle/infinitive is passive. Translate as BY
Verba ab magistrō dicebantur = the words were spoken by the teacher
Time When
No preposition in Latin; usually a singular noun (time word). Translate with "AT" or "IN" Dormimus nocte = we sleep at night
Time Within Which: IN or WITHIN
No preposition in Latin; usually a plural noun (time word). Translate "WITHIN" or "IN" advenies tribus horīs = you will arrive within 3 hours
Comparison
Paired with a comparative adjective or adverb. Translate as THAN Sextus celerius Marco cucurrerat = Sextus had run faster than Marcus
Degree of Difference
Paulō = a little; multō = a lot; Paired with a comparative adjective or adverb Sextus paulo celerius currit = Sextus runs a little faster
Ablative Absolute
Describes circumstances or cause for main action; Noun + Participle in the ablative case; usually comma-ed off
Level 1 translation: with the noun verbing (present participle) or with the noun having been verbed (perfect participle)
Level 2 translation: “with” becomes “when, since, although, while”. The participle becomes a verb whose finite tense is determined by the main verb
Ablatives learned in Latin 3
Separation
Describes two people, places or things that are static and separated from each other. Translate as FROM
Often uses prepositions ab or de with a verb of separation (as opposed to a verb of motion). Examples: defendō, prohibeō. Dux hostes ab urbe prohibet = the leader keeps the enemy from the city
With adjectives
Certain adjectives take an ablative object. Related to ablative of respect. Dignus + ablative = WORTHY OF (ABLATIVE)
Respect/Specification
Describes the way in which something is the case (the area of specificity)
No Latin preposition. Identify by context. Trans. as IN (IN RESPECT TO) Galli inter se legibus different = the Gauls differ among themselves in laws
With Verbs
5 verbs (and their compounds) take an ablative object: Potior (to obtain), Utor (to use), Fungor (to occupy, execute), Fruor (to enjoy), Vescor (to eat)
with cardinal numbers
When a cardinal number (e.g. 3, 4, 5, etc) is used, it is partnered with "ex" or "de" + the ablative. Septem ex amicis meis = 7 of my friends
of description
The quality or intangible characteristic of a person is described in the ablative case; physical qualities are in the genitive case vir magno honore = a man of great honor