Learn how to say Euphemise correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word euphemize:
refer to (something unpleasant or embarrassing) by means of a euphemism:
the song uses a vocabulary of euphemized profanity and obscenity
the impulse to euphemize is causing the syllables to multiply
mid 19th century: from Greek euphēmizein ‘use auspicious words’ (see euphemism)