ingeniously comes from ingenious + -ly, from Latin ingeniosus ('clever, gifted'), from ingenium ('innate quality, talent'), from in- ('in') + gignere ('to beget'). Morphologically, the ending is part of the etymology: the suffix is attached to the older base named in the history, producing a later English derivative. In present English, the adverb sense is "in a clever, original, and inventive manner", so the historical development ends in a clearly identifiable modern dictionary use. The same base also appears in related forms such as ingenious, ingenuity, and genius. Its semantic neighborhood includes cleverly, inventively, resourcefully, and skillfully, which helps locate the modern sense without adding a separate etymological claim. The named historical forms include Latin ingeniosus and Latin ingenium.