Where does “పెదలంక” come from?

పెదలంక (Telugu) comes from Telugu లంక, from Sanskrit लङ्क.

Ancestry of “పెదలంక”, step by step

Step	Language	Word	Meaning
1	Telugu	లంక	An island in general
2	Sanskrit	लङ्क	—

పెదలంక — Etymology, Origin & Word History | Etymology Explorer