To con thanks

Con Con, v. t. [imp. & p. p. {Conned}; p. pr. & vb. n. {Conning}.] [AS. cunnan to know, be able, and (derived from this) cunnian to try, test. See {Can}, v. t. & i.] 1. To know; to understand; to acknowledge. [Obs.] [1913 Webster]

Of muses, Hobbinol, I con no skill. --Spenser. [1913 Webster]

They say they con to heaven the highway. --Spenser. [1913 Webster]

2. To study in order to know; to peruse; to learn; to commit to memory; to regard studiously. [1913 Webster]

Fixedly did look Upon the muddy waters which he conned As if he had been reading in a book. --Wordsworth. [1913 Webster]

I did not come into Parliament to con my lesson. --Burke. [1913 Webster]

{To con answer}, to be able to answer. [Obs.]

{To con thanks}, to thank; to acknowledge obligation. [Obs.] --Shak. [1913 Webster]