From Wiktionary, the free dictionary
From அ- (a-, pronominal base) + அது (atu).
அவ்வது • (avvatu) (archaic)
- in that way, like that
- Synonym: அவ்வாறு (avvāṟu)
- University of Madras (1924–1936), “அவ்வது”, in Tamil Lexicon, Madras [Chennai]: Diocesan Press