frostwork

A red rash, with the pattern of frostwork on a Minnesota windowpane in January, was across his lean, handsome face.

From The Planet Strappers by Raymond Z. Gallun

The same is true of the silver frostwork traced on the window-pane by the delicate touch of invisible fingers.

From Nature and Culture by Harvey Rice

Under its upper part they could see a grille of frostwork, close-wrought, glistening, and white.

From Darrel of the Blessed Isles by Irving Bacheller

Annie went to the window, and at first could see nothing but some beautiful frostwork on it.

From McGuffey's Fourth Eclectic Reader by William Holmes McGuffey

Every clambering vine, every weed and dried leaf wore a coat of lace-webbed frostwork.

From At the Foot of the Rainbow by Gene Stratton-Porter