Soyombo Subjoiner

It tells the next consonant to join the stack. Between consonants, it tells text-shaping software to keep the first letter as the base and place the core part of the next beneath it. Insert another 𑪙 between each following pair to extend the vertical stack. Read the result as one consonant cluster; the mark has no sound of its own.

Zanabazar created Soyombo in 1686 to write Mongolian, Sanskrit, and Tibetan. Most surviving Soyombo texts are Buddhist manuscripts or inscriptions. Older Soyombo charts show a finished stack as a whole form; digital text represents its consonants separately, with 𑪙 between them.

In Sanskrit and Tibetan, the subjoiner builds consonant clusters. Mongolian syllable-final consonants use separate signs. Soyombo also has special forms for some consonants at the start of a cluster; depending on the surrounding cluster, one can appear in the stack or before it.

Why does 𑪙 look blank or broken?

It has no separate visible form of its own. A Soyombo-capable font and shaping software render the following consonant in the conjunct form. Without that support, the mark may look blank, appear as a missing-character box, or leave the consonants unjoined. Unicode specifies the character behavior, not one required calligraphic design.