Definition of "faze"

But we're / Not getting anywhere. Nothing / fazes her.

1965, Catullus, translated by Barriss Mills, The Carmina of Catullus: A Verse Translation, [West Lafayette, Ind.]: Purdue University Studies, carminum 42, page 71

In the dreary world / That we're living in / It's fashionable / To let nothing faze you

1978, “Living in a Dream”, in On the Edge, performed by Sea Level

Some individuals "can't hold their liquor" and become thoroughly intoxicated on small amounts of alcohol which would not faze most social drinkers.

1990, “Assessment”, in Broadening the Base of Treatment for Alcohol Problems: Report of a Study by a Committee of the Institute of Medicine, Division of Mental Health and Behavioral Medicine, Washington, D.C.: National Academy Press, section III (Aspects of Treatment), pages 252–253

He sticks it out even further in the scherzo, fazing the listener with displaced accents, and then inserting a malicious pause just when we seem to have found our feet.

2009, Richard Wigmore, The Faber Pocket Guide to Haydn, London: Faber and Faber, page 192

[Gareth] Southgate should be absolutely clear now that [Jordan] Pickford is not fazed by the big occasion but, on the flip-side, he might not be too thrilled his goalkeeper was involved so much.

2017 November 10, Daniel Taylor, “Youthful England earn draw with Germany but Lingard rues late miss”, in The Guardian‎, London, archived from the original on 28 March 2018