The Collaborative International Dictionary of English v.0.48:

Dravidian \Dra*vid"i*an\, prop. a. [From Skr. Dr[=a]vi[dsdot]a,
   the name of the southern portion of the peninsula of India.]
   (Ethnol.)
   Of or pertaining to the Dravida.
   [1913 Webster]

   Dravidian languages, a group of languages of Southern
      India, which seem to have been the idioms of the natives,
      before the invasion of tribes speaking Sanskrit. Of these
      languages, the Tamil is the most important; Telegu,
      Malayalam, and Kannada are included. These languages are
      distinct from the Indo-European family of languages.
      [1913 Webster]