decaffeinate
Concise Oxford English Dictionary © 2008 Oxford University Press:
decaffeinate /diːˈkafɪneɪt/
▶verb (usu. as adj. decaffeinated) remove most or all of the caffeine from (coffee or tea).
– derivatives
decaffeination noun.
decaffeination noun.
'decaffeinate' also found in these Oxford entries:

