Where does “ఆగ్నేయాసియా” come from?

ఆగ్నేయాసియా (Telugu) comes from Sanskrit आग्नेय, from Sanskrit अ॒ग्नि.

Ancestry of “ఆగ్నేయాసియా”, step by step

Step	Language	Word	Meaning
1	Sanskrit	आग्नेय	belonging, relating or consecrated to fire;...
2	Sanskrit	अ॒ग्नि	—