TILINGA or TRILINGA
> From the kUrma vibhAga prakaraNa of mArkaNDEyapurANa
tiliGgA kuJjari darI kaccha vAsAzca yE janAH |
tAmraparNI tathA kukSir iti kUrmasya dakSiNaH ||
Pargiter who prepared the critical edition of this purANa
said that the word tiliGga stands for telugu.
(Bibliothaka-Indica.P.367)