[XeTeX] Hyphenation in Transliterated Sanskrit

[Philip TAYLOR (Webmaster, Ret'd)]

Dominik --

> Several commentaries on the Bhagavadgītā have also
> been typed into the computer, including those of
> Śaṅkara, Yāmuna, Rāmānuja and Jñānadeva.

What is the significance (if any) of the extra-high "ṅ"
in "Śaṅkara" ?

** Phil.