An initial y- is found in Tamil only before long ā in such Words as yā1E49;ai elephant, yāṭu goat, yāṟu river, yāmai tortoise, etc. Side by side with these forms We also have forms without the initial y-, āṉai, āṭu, etc., and an examination of literary usage shows that the forms with initial y- has been dropped. In the early anthologies the forms with initial yā- greatly preponderate; in Middle Tamil, literature yā- and ā- forms are indifferently used; while in Modern Tamil, Particularly in the spoken language, ā- forms alone are current. The following is a list of such words together with their cognates in the other Dravidian languages:—
Ta. yā, ā to bind, tie; to dam up, stop, confine, yākkai binding, bond; body, ākkai body; strips of fibre used for thatching, yāppu binding, bond; metre, prosody, āppu bandage, tie; body; wedge, Ma. āppu wedge, plug, what stops a crevice, Ka. āpu a restraint, a stoppage, what stops, Malt. eye to tie, bind, 3rd p.t. ēcha, ēpu the fibres of a wild plant of which cord is made, Kur. ēp string, cord, rope, (with prothetic h-) hē' enā to tie, bind, 3rd p.t. hēcas.