I discovered what the problem was. Just in case someone else may also wonder how to do this, one way (not necessarily the best) is to insert:
{ר}high\
where the letter in parentheses (resh) should be entered in a l2r context, not r2l.

Alan


On Sun, Apr 28, 2024 at 4:23 PM Alan Bowen <bowenalan03@gmail.com> wrote:
I am having trouble entering ConteXt commands in an rtl language, in this case Hebrew.

How does one make the last(left hand) letter of the Hebrew word 
אשר 
a superscript?

My experiments with \high{...} have not been successful so far in part, I think, because I have not got the brackets right.

Any tips or pointers will be gratefully received.

Alan