Old Norse snjallr

← Proto-Germanic *snellaz (inherited)

→ English snell (cognate)

→ Westrobothnian snjäll (inherited)

→ Icelandic snilld (mention)

→ Icelandic snjall (inherited)

→ Norwegian Bokmål snill (derived)

→ Norwegian Nynorsk snill (derived)

→ Old Norse ráðsnjallr (mention)

→ Swedish snäll (derived)