Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
dătātim, adv. [dato), giving in turn or reciprocally, "invicem dando," Non. 96, 15 (ante-class. and rare): isti qui ludunt datatim, i. e. (in playing ball) by tossing from one to the other, * Plaut. Curc. 2, 3, 17. Obscenè, Enn. ap. Isid. Orig. 1, 25, 2; Afran. and Pomp. ap. Non. 96, 19 (Afran. v. 222; Pomp. v. 1 ribbeck); cf. Nov. ap. Non. ib. (v. 23 Ribbeck).