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| | DIALECTOLOGY |
 | | Dialectology as an academic subfield of the discipline of linguistics developed in the 19th century, together with the comparative-historical study of Indo-European, to which especially the study of Old Iranian contributed considerably. |
 | | Confined to the Central dialects, but of general import for the study of Iranian dialectology, especially in terms of its inclusion of socio-linguistic issues, is the study by Krahnke, which includes numerous maps and identifies two intersecting directions of isoglottic waves. |
 | | One such neglected study is social affiliation, which often involves diglossia, i.e., the use of different varieties or styles of a dialect or language, as well as bilingualism and multilingualism, characterized by a speaker using different languages in different social contexts, or language switch, and language loss, all contributing to linguistic diversity and groupings. |
| www.iranica.com /articles/v7/v7f4/v7f430.html (5562 words) |
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