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2.
Opposite of brand euthanasia ... engendering your brand with younger age cohorts.
“Maverick” marketing is often harnessed to “ Youthenize ” a brand. “Youthenize” is a consulting word originated by the New England Consulting Group. It essentially means that unless you keep a Brand fresh and contemporary with emerging age cohorts, eventually you will have to “euthanize” it. “Youthenize” or “euthanize” your Brand.
by Maverick Marketing April 17, 2009
 
1.
To make one look or feel younger
With her/his new hair color, cut & style she/ he was YOUTHenized instantaneously!
by Barnacle Babe October 19, 2013