Definition of "lurkingly"

[…] when the Feat of the Loose-Coat Skirmish happeneth to be done under-hand and privily, between two well-disposed, athwart the Steps of a Pair of Stairs, lurkingly, and in covert, behind a Suit of Hangings, or close hid and trussed upon an unbound Faggot, it is more pleasing to the Cyprian Goddess […] than to perform that Culbusting Art, after the Cynick manner, in the view of the clear Sunshine, or in a rich Tent, under a precious stately Canopy […]

1653, François Rabelais, chapter XVIII, in Thomas Urquhart, transl., Gargantua and Pantagruel‎, volume II, London: David Nutt, published 1900, page 99

Either openly obscene, and barely, but at the same time ingeniously, escaping the clutches of the law; or lurkingly depraved, or ridiculously sentimental and unreal, there is often enough in any one of the papers we now refer to to corrupt the youth of a generation, and to sap all manly and womanly virtues.

1872, The Law Magazine and Review, New Series, Vol. I, London: Butterworths, p. 819

Discontent foreran the Two Mutinies, and more or less it lurkingly survived them.

1924, Herman Melville, chapter 5, in Billy Budd‎, London: Constable & Co.

The despondency of the situation led to the feeling which then lurkingly dominated many other minds, viz. that, after all, it was better to be with Gandhi in the new movement and trim it if possible from within rather than stand out of it and let it spread without control or hindrance.

1958, M. R. Jayakar, The Story of My Life‎, volume 1, Asia Publishing House, page 376