Ahom Digit Four

Four is its value.

Ahom is a northeast Indian script used mainly for Tai Ahom. The oldest surviving text, the Snake Pillar inscription, dates to King Siuw Hum Miung’s reign (1497–1539). Ahom writing also appears on inscriptions, coins, brass plates and manuscripts. Though Tai Ahom use declined in the late 17th century, priests used the language and script in religious practice through the 19th century. A dictionary published in 1920 marks the start of modern use.

Why is Ahom four written two ways?

Traditional Ahom numbers mix digit signs with written words.

Though encoded as a digit, four is usually written out as the Ahom word 𑜏𑜣. Traditional Ahom numbers are not decimal (base ten); they mix digit signs with words and group counts by twenties. For example, 43 can be expressed as two twenties plus three. Modern Ahom adds zero, allowing decimal numbers too.

Which scripts connect historically to Ahom?

Ahom writing has documented links to Mon and Tay script traditions. One study traces Ahom letter shapes and spelling conventions to Mon writing used around the 11th century. This points to adaptation across scripts, not a one-time invention of each sign.

A study of a 1407 Chinese scroll from the Ming dynasty traces a related Tay (Shan) writing tradition’s use of Burmese forms to practical needs and political prestige, and places it close to Ahom. That is a script-level connection, not evidence that 𑜴 derives from a particular foreign digit.