*brashy*

a. 1. Resembling, or of the nature of, brash, or broken fragments; broken; crumbly. [ 1913 Webster ]

Our progress was not at all impeded by the few soft, brashy floes that we encountered. F. T. Bullen. [ Webster 1913 Suppl. ]

2. Showery; characterized by brashes, or showers. [ Webster 1913 Suppl. ]