Wiktionary
KNAVISHLY, adverb. In a knavish manner.
Dictionary definition
KNAVISHLY, adverb. In an artful manner; "he craftily arranged to be there when the decision was announced"; "had ever circumstances conspired so cunningly?".
Wise words
Every day we should hear at least one little song, read one
good poem, see one exquisite picture, and, if possible,
speak a few sensible words.