What is the X in X-mas?
1883, coined (along with adjective eugenic) by English scientist Francis Galton (1822-1911) on analogy of ethics, physics, etc. from Greek eugenes "well-born, of good stock, of noble race," from eu- "good" (see eu-) + genos "birth" (see genus).
The investigation of human eugenics, that is, of the conditions under which men of a high type are produced. [Galton, "Human Faculty," 1883]
eugenics eu·gen·ics (yōō-jěn'ĭks)
The study of hereditary improvement of the human race by controlled selective breeding.
The idea that one can improve the human race by careful selection of those who mate and produce offspring.