> "For·émid techt in coibden hí-síu
> I thought 'hisiu' was the demonstrative described in Thurneysen
I believe that's correct. But note that the second 'i' is
short, as in Thurneysen's example, "in fer (h)í-siu". His
parenthetical 'h' brings up another question of normalization.
In paragraph 5 of EN we wrote "í" without the "h":
Lotar íarum don taig í-sin.