இஃதியாதென்றான். (தொல். எழுத். 423, உரை.) This, used before words beginning with a vowel, as in இஃதாடை, and also occasionally, in poetry, before words commencing with 'y', as இஃதியாதென்றான்.
pron. < இ. This, used beforewords beginning with a vowel, as in இஃதாடை,and also occasionally, in poetry, before wordscommencing with `y', as இஃதியாதென்றான்.(தொல். எழுத். 423, உரை.)