Case (linguistics)

Definition and stakes

Portrait of Franz Boas Franz Boas,  International Journal of American Linguistics…

“ The unconsciously formed categories found in human speech have not been sufficiently exploited for the investigation of the categories into which the whole range of human experience is forced. Here, again, the clearness of etymological processes in many American languages is a great help to our investigation.
The isolation of formal elements and of stems, or of co-ordinate stems, whichever the case may be, is easily performed, and the meaning of every part of an expression is determined much more readily than in the innumerable fossilized forms of Indo-European languages.
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Source: Wikisource

R. G. Latham,  A Handbook of the English Language

“ Now it has long been remarked, that if the use of a preposition constitute a case, there must be as many cases in a language as there are prepositions, and that "above a man, beneath a man, beyond a man, round about a man, within a man, without a man, shall be cases as well as of a man, to a man, and with a man."
§ 209. For etymological purposes, therefore, it is necessary to limit the meaning of the word case; and, as a sort of definition, it may be laid down that where there is no change of form there is no case. With this remark, the English language may be compared with the Latin.
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Source: Gutenberg

Christian Brothers,  Graiméar na Gaedhilge (1906)

“ As the verb “have” is translated by tá and the preposition ag, so in a similar manner the verb “own” is translated by the verb IS and the preposition LE. Not only is the verb “to own,” but also all expressions conveying the idea of ownership, such as: The book belongs to me: the book is mine, &c.; are translated by the same idiom.
Notice the position of the words. In translating the verb “have” the verb tá is separated from the preposition ag by the noun or pronoun; but in the case of “own” the verb is and the preposition le come together.
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Source: Wikisource

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