EUPHEMISM
EUPHEMISM, is in speech or writing the avoiding of an unpleasant or indelicate word or expression by the use of one which is less direct, and which calls up a less disagreeable image in the mind. Thus for "he died" is substituted "he fell asleep," or "he is gathered to his fathers"; thus the Greeks called the "Furies" the "Eumenides," "the benign goddesses," just as country people used to call elves and fairies "the good folk neighbours."