crash 2 
(krăsh)
(krăsh)n.
1. A coarse, light, unevenly woven fabric of cotton or linen, used for towels and curtains.
2. Starched reinforced fabric used to strengthen a book binding or the spine of a bound book.
[From Russian krashenina, colored linen, from krashenie, coloring, from krasit', to color; see ker-3 in the Appendix of Indo-European roots.]