beflake

To take off an external layer; skin in thin flakes.

To deck or cover with or as with flakes.

For already close at hand the Argive host in full array marches and scours along, and the whitening foam beflakes the plain with drops from the deep breath of the steeds.

She moved to crouch motionless beside a chimney, while the couple she had just detected materialized in a slow descent out of the beflaked air to another roof only half a block away.