also: スラブごは
noun
Slavic languages
Refers to the Slavic branch of the Indo-European language family, including Russian, Polish, Czech, etc.
スラヴ語派にはロシア語やポーランド語が含まれる。
The Slavic languages include Russian and Polish.
スラヴ語 is a more general term for any Slavic language, while スラヴ語派 specifically refers to the Slavic branch as a linguistic grouping.
From English 'Slavic' or 'Slav' plus 語派 (language branch).