Russian

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Russian Wikipedia has an article on:
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Etymology

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Borrowed from French caleçon.

Pronunciation

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Noun

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кальсо́ны (kalʹsónyf inan pl (genitive кальсо́н, plural only)

  1. (plural only) long underwear, long johns, that is worn either under normal clothing in cold weather, or as a night dress.
    Synonym: подшта́нники (podštánniki)

Declension

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