thank you for yet another meaningful discussion. I revisited PED on the entries of matta, I also looked up Monier Williams online for maatra. I am glad that you provided the corrections, which make this online learning and discussion a very valuable experience. As I had mentioned in the past, that Sanskrit may be useful from time to time, I am sure this information will be useful for those studying the book now and the future, and I thank you all on their behalf.
I just have another item to discuss: sunakhakaala. Is this a tappurisa compound, literally "time of a dog"? Or is it something special again. Please advise. Thank you.