(UN-1 12 and 5 b.)

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1846.  Mrs. Gore, Eng. Char., Introd. My Lord Duke, no longer arrayed in his star, garter, and unapproachability, can be trafficked with.

2

1902.  S. E. White, Blazed Trail, xxx. The lumber-jack demands in his boss a certain fundamental unapproachability.

3