adv. [f. prec. + -LY2.] In a tautological manner, with tautology.
1620. T. Granger, Div. Logike, 292. Handle the same matter (homogeneously, not tautologically).
1711. Oldmixon, Hist. of Addresses, II. 2. I shoud rejoice to see em tautologically sincere, with the same thing over and over again, like a Fanatick in his Extempore, or a rural Orthodox in a Funeral Sermon.
1820. Coleridge, Let. C. A. Tulk, 17 July (in Pearsons Catal. [1894] 14). At once superfluous and defective, tautologically superfluous in the point of co-equality, and dangerously defective in that of the subordination.
1840. Hood, Up Rhine, 61. I join with Dr. Watts sluggard in wishing tautologically, for a little more sleep and a little more slumber.
So Tautologicalness (Bailey, 1727, vol. II.).