slyly

Adverb

slyly (comparative more slyly, superlative most slyly)

1. In a sly manner, cunningly.
   • VVhen ſhe vvas dreſt, therefore, dovvn ſhe vvent, reſolved to encounter all the Horrours of the Day, and a moſt diſagreeable one it proved; for Lady Bellaſton took every opportunity very civilly and slily to inſult her; […]1749, Henry Fielding, “In which Mrs. Miller Pays a Visit to Sophia”, in The History of Tom Jones, a Foundling, volume VI, London: A[ndrew] Millar, […], →OCLC, book XVII, page 134
   • So when they were working that evening at the pumps, there was on this head no small gamesomeness slily going on among them, as they stood with their feet continually overflowed by the rippling clear water; […]1851 November 14, Herman Melville, “The Town-Ho’s Story (As Told at the Golden Inn.)”, in Moby-Dick; or, The Whale, 1st American edition, New York, N.Y.: Harper & Brothers; London: Richard Bentley...