Ingeniously

The exterior of the train is perfectly air-smoothed and to cut passenger steps up to recessed doors would never do; when the deep doors are shut, therefore, the steps fold up ingeniously on the inside of them to create a level floor in the corridor of the coach.

Nefzawi, rather ingeniously, offers numerous fantastic explanations and interpretations of dream sequences in The Perfumed Garden.

Although Shakespeare refers to “hums and ha’s,” sifting through etiquette manuals and public-speaking guides turns up scant evidence of a prohibition against ums, ers and uhs, which are profuse in the first recording of Thomas Edison’s voice, in 1888. Mr. Erard, rather ingeniously, traces the prohibition on um and other speech flaws to the advent of radio in the early 1920s.