Syncretism (linguistics)
Encyclopedia
In linguistics
Linguistics
Linguistics is the scientific study of human language. Linguistics can be broadly broken into three categories or subfields of study: language form, language meaning, and language in context....

, syncretism is the identity of form of distinct morphological
Morphology (linguistics)
In linguistics, morphology is the identification, analysis and description, in a language, of the structure of morphemes and other linguistic units, such as words, affixes, parts of speech, intonation/stress, or implied context...

 forms of a word. This phenomenon is typical of fusional languages.

For example, in English
English language
English is a West Germanic language that arose in the Anglo-Saxon kingdoms of England and spread into what was to become south-east Scotland under the influence of the Anglian medieval kingdom of Northumbria...

, the nominative
Nominative case
The nominative case is one of the grammatical cases of a noun or other part of speech, which generally marks the subject of a verb or the predicate noun or predicate adjective, as opposed to its object or other verb arguments...

 and accusative
Accusative case
The accusative case of a noun is the grammatical case used to mark the direct object of a transitive verb. The same case is used in many languages for the objects of prepositions...

 forms of you and it are the same, whereas he/him, she/her, etc., have different forms depending on grammatical case
Grammatical case
In grammar, the case of a noun or pronoun is an inflectional form that indicates its grammatical function in a phrase, clause, or sentence. For example, a pronoun may play the role of subject , of direct object , or of possessor...

. In Latin
Latin
Latin is an Italic language originally spoken in Latium and Ancient Rome. It, along with most European languages, is a descendant of the ancient Proto-Indo-European language. Although it is considered a dead language, a number of scholars and members of the Christian clergy speak it fluently, and...

, the nominative and vocative
Vocative case
The vocative case is the case used for a noun identifying the person being addressed and/or occasionally the determiners of that noun. A vocative expression is an expression of direct address, wherein the identity of the party being spoken to is set forth expressly within a sentence...

 of third-declension nouns have the same form (e.g. rēx "king" is both nominative and vocative singular). Similarly, in German
German language
German is a West Germanic language, related to and classified alongside English and Dutch. With an estimated 90 – 98 million native speakers, German is one of the world's major languages and is the most widely-spoken first language in the European Union....

, the infinitive
Infinitive
In grammar, infinitive is the name for certain verb forms that exist in many languages. In the usual description of English, the infinitive of a verb is its basic form with or without the particle to: therefore, do and to do, be and to be, and so on are infinitives...

, first person
Grammatical person
Grammatical person, in linguistics, is deictic reference to a participant in an event; such as the speaker, the addressee, or others. Grammatical person typically defines a language's set of personal pronouns...

 plural present, and third person
Grammatical person
Grammatical person, in linguistics, is deictic reference to a participant in an event; such as the speaker, the addressee, or others. Grammatical person typically defines a language's set of personal pronouns...

 plural present of almost all verbs are identical in form (e.g. nehmen "to take", wir nehmen "we take", sie nehmen "they take").

Syncretism can arise through either phonological
Phonology
Phonology is, broadly speaking, the subdiscipline of linguistics concerned with the sounds of language. That is, it is the systematic use of sound to encode meaning in any spoken human language, or the field of linguistics studying this use...

 or morphological change. In the case of phonological change, forms that were originally distinct come to be pronounced identically, so that their distinctness is lost. Thus in the German case, the infinitive nehmen comes from Old High German
Old High German
The term Old High German refers to the earliest stage of the German language and it conventionally covers the period from around 500 to 1050. Coherent written texts do not appear until the second half of the 8th century, and some treat the period before 750 as 'prehistoric' and date the start of...

neman, the first person plural nehmen comes from nemēm, and the third person plural nehmen comes from nemant. In the case of morphological change, one form simply stops being used and is replaced by the other: this is the case with the Latin example, where the nominative simply displaced the vocative in the third declension.
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