There is a letter in the unicode standard 'Modifier Letter Rhotic Hook' at $02DE. I was wondering what it is used for and who uses it ?
Which languages (if any) use this character and is it worth including in a font ?
I have looked on the internet but apart from it appearing in the unicode standard there seems to be very little information about it.
I suppose the main question is 'Is this character in wide useage ?'