I. ˈkrəm noun
Etymology: Middle English crumme, from Old English cruma; akin to Middle High German krume crumb
Date: before 12th century
1.
a. : a small fragment especially of something baked (as bread)
b. : a porous aggregate of soil particles
2. : bit
a crumb of good news
3. : the soft part of bread
4. slang : a worthless person
II. transitive verb
Date: 14th century
1. : to break into crumbs
2. : to cover or thicken with crumbs
3. : to remove crumbs from
crumb a table