Tamil derivates :acakku (acakki-), ayakku (ayakki-) to shake (tr.); acai (-v-, -nt-) to move, stir, go away; (-pp-, -tt-) to shake (tr.), move, agitate; n. cud, sling for carrying or preserving ōla books; acaivu shaking, moving about, swinging; ayar (-v-, -nt-) to drive, as a chariot
Malayalam :ayakka, ayekka
Malayalam meaning :to send, let go, leave, slacken, loosen
Malayalam derivates :ayaccal being loose, untied; ayappu sending, slackening; ayappikka to make to send, get oneself dismissed, take leave; ayayuka to slacken; aya, ayavu rumination; ayavu elasticity; ayar_uka to chew the cud
Kannada meaning :to move, shake, tremble, dangle, pendulate; to throw away, scatter, disperse
Kannada derivates :asavasa haste, speed; asimisi without deliberation; asu quickness, haste; asumbu to cause to move about, shake, agitate
Kodagu :ay- (ayp-, ayc-)
Kodagu meaning :to send
Notes :It is well possible there are actually two roots contaminated in this entry, one represented by Tam. acai, acaŋku, etc., the other represented by Tam. ayar, Mal. ayakka, Kod. ay-, etc. Dialectal alternations of -s-/-j- in the auslaut position are rather common, of course, but in Kod. we should expect -s-, not -j-, and the difference between Tam. acakku/ayakku and ayar is rather striking. However, internal derivation is still not excluded, so for the moment we prefer to keep both variants in the same entry.
Number in DED :0037
Proto-South Dravidian :*aja-
Meaning :water; pool
Tamil meaning :water, spring, tank, pond
Malayalam meaning :pool, tank
Notes :A Tamil-Malaylam isogloss. Connection with *ā̆m- 'water' is hardly likely (unless Tam. ām is a contraction from ayam, which is hardly a common development).