Qualities

red

Source:*čьrvenъProto-Slavic · “red, from *čьrvь 'worm' (the dye insect)”certain

Red was named after the worm: a red dye was made from scale insects (*čьrvь).

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English

red

Polish

czerwony

tʂɛrˈvɔnɨ

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In all five languages

BCS script

Latin under Cyrillic

Russian
кра́сныйkrasnyj
ˈkrasnɨjdifferent word · Proto-Slavic *krasьnъ 'beautiful'
In older Russian красный meant 'beautiful' (compare краси́вый); the colour sense took over later.
Ukrainian
черво́нийčervonyj
tʃɛrˈʋɔnɪjinherited
Polish
czerwony
tʂɛrˈvɔnɨinherited
Czech
červený
ˈtʃɛrvɛniːinherited
Bosnian-Croatian-Serbian
crvenцрвен
ˈtsr̩veninherited
English
red

Russian кра́сный “red”Czech krásný “beautiful”
Russian 'beautiful' is краси́вый; Czech 'red' is červený.