> 1761 G. Montagu Let. 8 Oct. in H. Walpole Corr. (1941) IX. 393 My Lord shows us both the most cousinly distinctions and all the grandees treat us with a difference.
a1817 J. Austen Persuasion (1818) III. xii. 253 That cousinly little interview.
1908 W. Trafford-Taunton Threshold i. 123 He..went to the funeral of her little child with cousinly consolation, a cousinly hand-shake, and a cousinly cheek kiss.