shchi

...Today, except in special cases, there is little difference between urban and rural clothing, and traditional clothing styles and embroidery designs have been incorporated into urban fashion.
[Black bread and pie]
Until relatively recently, the staple food of the peasants was black bread, potatoes, and porridge (kasha) made from various grains. Soups included shchi, which was made with pickled cabbage, borsch, which was colored red with tomatoes and sugar beets, and tyurya and okroshka, which were based on kvass. In the Russian Orthodox Church, Wednesdays and Fridays were fasting days even during normal times, and long periods of fasting were set before major festivals such as Easter and Christmas, during which eating meat was prohibited.

*Some of the terminology explanations that mention "shchi" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…現在では特別な場合を除き都市と農村の服装のあいだに大きな差はなく，伝統的な衣服のスタイルやししゅうのデザインなどは，都会のファッションの中に取り入れられている。
［黒パンとピローグ］
　農民の主食は比較的最近まで黒パンとジャガイモ，それに各種の穀物でつくる粥(カーシャkasha)であり，スープには酢漬けのキャベツを具とするシチーshchi，トマトとテンサイで赤い色をつけたボルシチ，クワスをベースとするチューリャtyuryaやオクローシカokroshkaなどがあった。ロシア正教ではふだんでも水曜日と金曜日は精進日とされ，復活祭やキリスト降誕節(クリスマス)のような大きな祭りの前には長い斎戒期が設けられていて，その間は肉食が禁止された。…

※「shchi」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報