What does "elude" mean?

Elude: To avoid slyly, by artifice, stratagem, or dexterity; to escape from in a covert manner; to mock by an unexpected escape; to baffle; as, to elude an officer; to elude detection, inquiry, search, comprehension; to elude the force of an argument or a blow. Me gentle Delia beckons from the plain, Then, hid in shades, eludes he eager swain. Pope. The transition from fetichism to polytheism seems a gradual process of which the stages elude close definition. Tylor.