இஃது

iḵtu   pron. இ³. 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 )  

iḥtu   pron. this, this thing.