Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Proto-Indo-European *swépnos

→ English somnolent (derived)
→ English somnolence (derived)
→ English sweven (inherited)
→ Avestan 𐬓𐬀𐬟𐬆𐬥𐬀 (inherited)
→ Avestan 𐬓𐬀𐬟𐬥𐬀 (inherited)
→ Old English swefn (inherited)
→ Assamese সপোন (derived)
→ Assamese সপান (derived)
→ Catalan son (inherited)
→ Welsh hun (inherited)
→ Danish søvn (inherited)
→ Greek ύπνος (inherited)
→ Middle English sweven (inherited)
→ Spanish sueño (inherited)
→ Faroese svøvnur (derived)
→ French sommeil (inherited)
→ French somnolence (derived)
→ Irish suan (inherited)
→ Scottish Gaelic suain (inherited)
→ Hindi सपना (inherited)
→ Old Gujarati सुमिणउं (inherited)
→ Icelandic svefn (inherited)
→ Italian sogno (inherited)
→ Italian sonno (inherited)
→ Italian insonne (mention)
→ Italian insonnia (mention)
→ Italian sonnolenza (derived)
→ Italian sonnolento (derived)
→ Northern Kurdish xew (derived)
→ Northern Kurdish xewn (inherited)
→ Latin somnus (inherited)
→ Latin numella (mention)
→ Lithuanian sapnas (inherited)
→ Latvian sapnis (inherited)
→ Maithili सपना (inherited)
→ Maithili 𑒮𑒣𑒢𑒰 (inherited)
→ Nepali सपना (inherited)
→ Old Norse svefn (inherited)
→ Old Spanish suenno (derived)
→ Pali soppa (inherited)
→ Portuguese sono (inherited)
→ Portuguese sonolência (derived)
→ Romanian somn (inherited)