Ancient Greek μῦ

← Ancient Greek νῦ (link)

← Phoenician 𐤌‬ (borrowed)

→ English mu (derived)

→ English muography (derived)

→ Greek μι (inherited)

→ Esperanto muo (derived)

→ Finnish myy (borrowed)

→ Icelandic mý (derived)

→ Japanese ミュー (learned borrowing)

→ Russian мю (borrowed)