He first used the word
eugenic in his 1883
Inquiries into Human Faculty and Its Development,
[52] a book in which he meant "to touch on various topics more or less connected with that of the cultivation of race, or, as we might call it, with 'eugenic' questions." He included a footnote to the word "eugenic" which read: That is, with questions bearing on what is termed in Greek,
eugenes namely, good in stock, hereditary endowed with noble qualities. This, and the allied words,
eugeneia, etc., are equally applicable to men, brutes, and plants. We greatly want a brief word to express the science of improving stock, which is by no means confined to questions of judicious mating, but which, especially in the case of man, takes cognizance of all influences that tend in however remote a degree to give to the more suitable races or strains of blood a better chance of prevailing speedily over the less suitable than they otherwise would have had. The word
eugenics would sufficiently express the idea; it is at least a neater word and a more generalized one than
viticulture which I once ventured to use.
[53] In 1904 he clarified his definition of eugenics as "the science which deals with all influences that improve the inborn qualities of a race; also with those that develop them to the utmost advantage."
[54]