As I said this is a very small sample.  Let me know if you want me to send you the entire list.
Note also that the Rg-veda version used was Aufrechts not the metrically restored edition of Van Hooten and Holland.
Harry

On Thu, Mar 21, 2019 at 2:27 PM Martin Gansten <martingansten@gmail.com> wrote:
Thank you, Harry. Most of these are just instances where sandhi has not been implemented, or (in the case of Veda) where a text has been metrically restored. From a quick glance, though, a few do seem to be possible instances of aḥ + a > a a, and/or of e + a > a a. I will have to look more carefully.

Best wishes,
Martin


Den 2019-03-21 kl. 19:08, skrev Harry Spier:
I just did a search of GRETIL for ...a a....  ... and there are hundreds possibly thousands of occurances of this .  Here is a small sample.  Note the Brahmasutras and Mahabhasya with commentaries had hundreds but since I wasn't sure if sandhi had been broken in these for commentarial purposes I'm not including them in this following small sample: