Ablative (Latin)

In Latin grammar, the ablative case (in Latin, cāsus ablātīvus) is one of the six cases of nouns. Traditionally it is the sixth case (Latin: casus sextus, casus latinus). It has forms and functions derived from the Proto-Indo-European ablative, instrumental, and locative. It expresses concepts similar to those of the English prepositions from; with, by; and in, at.[1] It is sometimes called the adverbial case, since phrases in the ablative can be translated as adverbs: magnā (cum) celeritāte, "with great speed", or "very quickly".

Forms

1st 2nd 3rd 4th 5th
Singular -e / -ī
Plural -īs (-ābus) -īs (-ōbus) -ibus -ibus (-ubus) -ēbus

Uses

Ablative proper

Some uses of the ablative descend from the Proto-Indo-European ablative case.

The whole to which a certain number belongs or is a part. E.g. centum ex virīs, "one hundred of the men"; quīnque ex eīs, "five of them."
Cities and small islands which are a/o-declension singulars, as well as the word domus - or in other words, all place-names that have retained the proper locative - can use this ablative even without a preposition. In the other words, this would mean confusion with a ablative in locative function, and is hence not possible.

Instrumental ablative

Some uses of the ablative descend from the Proto-Indo-European instrumental case.

Locative ablative

Some meanings of the ablative descend from the Proto-Indo-European locative case.

Prepositions

Some Latin prepositions, like pro, take a noun in the ablative. A few prepositions may take either an accusative or an ablative, in which case the accusative indicates motion, and the ablative indicates no motion. E.g. in casā, "in the cottage"; in casam, "into the cottage".[13]

The mnemonics "PASS DICE" and "SIDSPACE" help us to remember all of the common prepositions that use the ablative. They are: pro, ab, sub, sine, de, in, cum, and e(x) and the rest:-

This "aide memoire" was taught in schools when Latin was on the curriculum:-
A, ab, absque, coram, de,
Palam, clam, cum, ex, and e,
Sine, tenus, pro, and prae:
Add super, subter, sub, and in,
When 'state,' not 'motion,' 'tis they mean.[14]

References

Bibliography

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