Kosma

Kosma is also one of the Russian and Ukrainian forms of Cosmas.

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In both languages, the name can be written as: Косма & Косьма

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Sources:

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- Косма (Kosma): https://imya.com/name/27633 (in Russian)
- Косьма (Kosma): https://imya.com/name/27647 (in Russian)
- https://ru.wikipedia.org/wiki/Косма (in Russian)
- https://uk.wikipedia.org/wiki/Косма (in Ukrainian)
- https://ru.wikipedia.org/wiki/Кузьма (in Russian; mentions variant spellings)
- https://uk.wikipedia.org/wiki/Список_православних_імен#К (in Ukrainian)
- https://uk.wikipedia.org/wiki/Українські_православні_чоловічі_імена#К (in Ukrainian)
- saints Cosmas and Damian (3rd century AD):
• Russian: https://ru.wikipedia.org/wiki/Косма_и_Дамиан (in Russian)
• Ukrainian: https://uk.wikipedia.org/wiki/Косма_і_Даміан (in Ukrainian)