masticate
Concise Oxford English Dictionary © 2008 Oxford University Press:
masticate /ˈmastɪkeɪt/
▶verb chew (food).
– derivatives
mastication noun,
masticator noun,
masticatory adjective.
mastication noun,
masticator noun,
masticatory adjective.
– origin C17 (earlier (ME) as mastication): from late L. masticat-, masticare ‘chew’, from Gk mastikhan ‘gnash the teeth’.
'masticate' also found in these Oxford entries:

