Where does “अय्यर” come from?

अय्यर (Hindi) comes from Tamil ஐயர், from Tamil -அர், from Proto-Dravidian *-ar — Indicates a human plural noun.

Ancestry of “अय्यर”, step by step

StepLanguageWordMeaning
1Tamilஐயர்a TamBrahm caste
2Tamil-அர்human plural suffix
3Proto-Dravidian*-arIndicates a human plural noun
Every word from Proto-Dravidian *-ar →Every word from Tamil -அர் →Every word from Tamil ஐயர் →