IPA: /ˈwɪtɪŋli/
KK: /ˈwɪtɪŋli/
In a way that shows knowledge or awareness of what one is doing; intentionally or on purpose.
She wittingly agreed to the terms of the contract, knowing the implications.
Wittingly → It is formed from "wit" (from Old English "witan", meaning to know) and "-ingly" (a suffix used to form adverbs). The word "wittingly" means in a manner that shows knowledge or awareness, or knowingly.
Think of 'wit' as knowing something, and the '-ingly' shows how you do it. So, wittingly means doing something with knowledge.