Lü ᦉᦸᧂ

← Ahom 𑜏𑜨𑜂𑜫 (cognate)

← Tai Dam ꪎꪮꪉ (cognate)

← Lao ສອງ (cognate)

← Northern Thai ᩈᩬᨦ (cognate)

← Bouyei soongl (cognate)

← Shan သွင် (cognate)

← Proto-Tai *soːŋᴬ (inherited)

← Tai Nüa ᥔᥩᥒᥴ (cognate)

← Thai สอง (cognate)

← Zhuang song (cognate)

→ Tai Dam ꪎꪮꪉ (cognate)

→ Lü ᦉᦲᧇᦉᦸᧂ (compound)

→ Lü ᦌᦱᧁᦉᦸᧂ (compound)

→ Lao ສອງ (cognate)

→ Shan သွင် (cognate)

→ Saek ส่อง (cognate)

→ Tai Nüa ᥔᥩᥒᥴ (cognate)

→ Thai สอง (cognate)

→ Zhuang song (cognate)