Definition of "deprostrate"

How may weake mortall euer hope to file / His vnsmooth tongue, and his deprostrate stile?

1610, Giles Fletcher, Christs Victorie, and Triumph in Heauen, and Earth, over, and after death‎, stanza 43, page 13

Hitherto you haue seene Manasses, not with Lots wife, trãsform’d into a pillar of Salt, but with the Poets Niobe, into a weeping and waimenting stone: now shall you see him with an humble and lowly heart, raising his ruined soule, deprest with sinne, deprostrate for sinne; lifting vp his bleared eyes, streaming with teares, swelling for sorrow […]

1620 September 10, George Langford, Manassehs Miracvlovs Metamorphosis […]‎, published 1621, page 21

The nations came to her deprostrate bed

c. 1621, Thomas Robinson, edited by H. Oskar Sommer, The Life and Death of Mary Magdalene, published 1899, stanza 10, page 12