int. Also 9 taa. An infantile word expressing thanks.
1772. Mrs. Delany, in Life & Corr. (1861), I. 457. You would not say Ta to me for my congratulation.
1807. W. Irving, Salmag. (1824), 363. How her ten weeks old baby will laugh and say taa!
1892. Zangwill, Childr. Ghetto, I. 117. Give it me. Ill say ta so nicely.