Where does “அதுகள்” come from?

அதுகள் (Tamil) comes from Tamil அது, from Proto-Dravidian a- — that, that there.

Ancestry of “அதுகள்”, step by step

StepLanguageWordMeaning
1Tamilஅதுthat
2Proto-Dravidiana-that, that there
Every word from Proto-Dravidian a- →Every word from Tamil அது →