Proto-West Germanic *blīþī

→ English blithe (inherited)

→ Afrikaans bly (inherited)

→ Old English bliþe (inherited)

→ West Frisian bliid (inherited)

→ Dutch blij (inherited)

→ Old Saxon blidi (inherited)

→ Scots blithe (inherited)

→ Saterland Frisian bliede (inherited)