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Old Armenian սառն
Avestan 𐬯𐬀𐬭𐬆𐬙𐬀 (cognate)
Old Church Slavonic слана (cognate)
Old Church Slavonic слота (mention)
Persian سرد (cognate)
Persian سرما (cognate)
Proto-Indo-European (inherited)
Proto-Indo-European *ḱer- (mention)
Proto-Indo-European *ḱel- (mention)
Lithuanian šerkšnas (cognate)
Lithuanian šarmà (cognate)
Latvian sērsna (cognate)
Old Norse hjarn (cognate)
Old Norse héla (cognate)
Middle Persian slt' (cognate)
Middle Persian slmʾk' (cognate)
Sanskrit शिशिर (cognate)

Armenian սառն (mention)
Sanskrit शिशिर (cognate)
Old Armenian ցուրտ (cognate)
Old Armenian սառչիմ (suffix)
Old Armenian սառնում (suffix)
Old Armenian սառոյց (suffix)