People

king

Source:*korljьProto-Slavic · “from the name of Charlemagne (Karl)”certain

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English

king

Polish

król

krul

CognateSame source — the sound laws connect them.

In all five languages

BCS script

Latin under Cyrillic

Russian
коро́льkorolʹ
kɐˈrolʲinherited
Ukrainian
коро́льkorolʹ
kɔˈrɔlʲinherited
Polish
król
krulinherited
Czech
král
kraːlinherited
Bosnian-Croatian-Serbian
kraljкраљ
kraʎinherited
English
king
English shares this source: Charles — Charlemagne's Germanic name Karl became the Slavic word for 'king'.