SLYLY
craftily, cunningly, foxily, knavishly, slyly, trickily, artfully
(adverb) in an artful manner; “he craftily arranged to be there when the decision was announced”; “had ever circumstances conspired so cunningly?”
Source: WordNet® 3.1
Etymology
Adverb
slyly (comparative more slyly, superlative most slyly)
In a sly manner, cunningly.
Anagrams
• lysyl
Source: Wiktionary
Sly"ly, adv.
Definition: In a sly manner; shrewdly; craftily.
Honestly and slyly he it spent. Chaucer.
Source: Webster’s Unabridged Dictionary 1913 Edition