tautologicallyadv.

1620 T. Granger Syntagma Logicum 292 Handle the same matter (homogeneously, not tautologically).

a1687 W. Petty Refl. Persons & Things in Ireland (1790) 131 As to fraud so often, and so tautologically repeated in Sir Hierom's articles: Did I ever alter a title in any original survey?

1711 J. Oldmixon Hist. Addresses II. 2 I shou'd 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.

1791 J. Collinson Hist. & Antiq. Somerset III. 337 There being at some little distance northeastward from the church a remarkable eminence tautologically called Duntame-Hill [Dun = hill].

1820 S. T. Coleridge Let. to C. A. Tulk 17 July in Pearson's 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 T. Hood Up Rhine 57 I join with Dr. Watts's sluggard in wishing, tautologically, for ‘a little more sleep, and a little more slumber’.

1929 H. W. Haggard Devils, Drugs, & Doctors iii. 50 He had often slyly hinted that, tautologically..speaking, he had been in almost every ‘female nunnery in all Europe and could write volumes on the adventures of these religious beauties.’

1979 J. A. Robinson Logic: Form & Function iii. 43 We can extend this idea to the case when infinitely many sentences together tautologically imply a given sentence.

2012 Times (Nexis) 18 June (Sport) 56 One year later, as a commentator once tautologically put it, it was ‘déjà vu all over again’.