Origin: 1300–50; ME < L
mōrālis, equiv. to
mōr- (s. of
mōs) usage, custom +
-ālis -al 1 
Related forms: mor⋅al⋅less, adjective
Synonyms:
5. upright, honest, straightforward, open, virtuous, honorable. 11. integrity, standards, morality. Morals, ethics refer to rules and standards of conduct and practice. Morals refers to generally accepted customs of conduct and right living in a society, and to the individual's practice in relation to these: the morals of our civilization. Ethics now implies high standards of honest and honorable dealing, and of methods used, esp. in the professions or in business: ethics of the medical profession.