fanaticize

[fuh-nat-uh-sahyz]
verb (used without object), fa·nat·i·cized, fa·nat·i·ciz·ing.
  1. to act with or show fanaticism.
Also especially British, fa·nat·i·cise.

Origin of fanaticize

First recorded in 1705–15; fanatic + -ize
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for fanaticize

fanaticize

fanaticise

verb
  1. to make or become fanatical
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012