Definition of "clerically"

This reverend man, with countenance so demurely benign, with robes so glossy and so clerically flowing, with wig so minutely powdered, so rigid and so vast,—-could this be he who, of late, with sour visage, and in snuffy habiliments, administered, ferule in hand, the Draconian laws of the academy?

1839, Edgar Allan Poe, William Wilson‎

Among the black and breaking groups in that distance was one especially black which did not break—a group of two figures clerically clad.

1911, G. K. Chesterton, “The Blue Cross”, in The Innocence of Father Brown‎

His plump hands were transparent against the clerically black vest.

1942, Emily Carr, “The Bishop and the Canary”, in The Book of Small