What is damila?

Some articles on damila:

Dravidian Languages - Origins of The Word Dravidian
... page xxi), "The forms damiḷa/damila almost certainly provide a connection of dr(a/ā)viḍa " and "...whereby the further development might have been *tamiẓ > *damiḷ > damiḷa- / damila- and further, with the intrusive, 'hypercorrect' (or perhaps analogical) -r-, into dr(a/ā)viḍa ... It is obvious that the Sanskrit dr(a/ā)viḍa, Pali damila, damiḷo and Prakrit d(a/ā)viḍa are all etymologically connected with tamiẓ" and further remarks "The r in tamiẓ > dr(a/ā)viḍa is a hypercorrect ...
Tamil People - Etymology
... term Tamilar and its equivalents in Prakrit such as Damela, Dameda, Dhamila and Damila was a self designation or a term denoted by outsiders ... inscription of about the same time in Nagarjunakonda seems to refer to a Damila ... story known as Akiti Jataka there is a mention to Damila-rattha (Tamil dynasty) ...