from
The Collaborative International Dictionary of English v.0.48
Ethic \Eth"ic\, Ethical \Eth"ic*al\, a. [L. ethicus, Gr. ?, fr.
? custom, usage, character, dwelling; akin to ? custom, Goth.
sidus, G. sitte, Skr. svadh?, prob. orig., one's own doing;
sva self + dh? to set: cf. F. ['e]thique. See {So}, {Do}.]
Of, or belonging to, morals; treating of the moral feelings
or duties; containing percepts of morality; moral; as, ethic
discourses or epistles; an ethical system; ethical
philosophy.
[1913 Webster]
The ethical meaning of the miracles. --Trench.
[1913 Webster]
{Ethical dative} (Gram.), a use of the dative of a pronoun to
signify that the person or thing spoken of is regarded
with interest by some one; as, Quid mihi Celsus agit? How
does my friend Celsus do?
[1913 Webster]