The crumblingness of the ancient wall worried the conservators.

She was, by crumbs, more relieved than she could express.

Ms. Crumby traced her family's tartan to a small village in the Highlands.

The old stone wall, crumblesome after centuries of neglect, shed small lumps at every touch.

After freezing the pastry, she sprinkled crumblets over the tart to add texture.