Main Entry:

¹crum·ble

Pronunciation:

\ˈkrəm-bəl\

Function:

verb

Inflected Form(s):

crum·bled; crum·bling \-b(ə-)liŋ\

Etymology:

alteration of Middle English kremelen, frequentative of Old English gecrymian to crumble, from cruma

Date:

1547

transitive verb : to break into small pieces intransitive verb 1 : to fall into small pieces : disintegrate 2 : to break down completely : collapse <marriages crumble>