Old Turkic 𐰋𐰃𐱅𐰏

← Bashkir бетеү (cognate)

← Mongolian бичиг (cognate)

← Old Turkic 𐰋𐰃𐱅𐰃 (mention)

← Old Turkic 𐰋𐰃𐱅𐰃𐰏 (link)

→ Azerbaijani bitik (cognate)

→ Bashkir бетеү (cognate)

→ Hungarian betű (cognate)

→ Mongolian бичиг (cognate)

→ Manchu ᠪᡳᡨᡥᡝ (link)

→ Khitan 𘭃𘱚 (borrowed)