prude
Concise Oxford English Dictionary © 2008 Oxford University Press:
prude/pruːd/
▶noun a person who is easily shocked by matters relating to sex or nudity.
– derivatives
prudery noun.
prudery noun.
– origin C18: from Fr., back-form. from prudefemme, fem. of prud'homme ‘good man and true’.
'prude' also found in these Oxford entries:

