Ancient Greek χεῖ

→ English chi (derived)

→ Greek χι (inherited)

→ Spanish ji (borrowed)

→ Finnish khii (derived)

→ Ancient Greek ξεῖ (link)

→ Hebrew כי (borrowed)

→ Italian chi (derived)

→ Japanese キー (derived)

→ Japanese カイ (derived)

→ Russian хи (borrowed)