Faze
WordNet
verb
(1) Disturb the composure of
WiktionaryText
Verb
- To frighten or cause hesitation; to daunt, put off (usually used in the negative), to perturb, to disconcert.
- Jumping out of an airplane does not faze him, yet he is afraid to ride a roller coaster.
Usage notes
Citations for faze in the OED start in 1830; usage was established by 1890.
The word phase is sometimes used incorrectly for faze; such notables as The New York Times and Mark Twain have made this error. This sometimes leads to the supposition that faze is an uneducated spelling of phase; they are distinct terms.