befuddlingly vs surreptitiously

befuddlingly

adv

  • In a way or to an extent that befuddles 

surreptitiously

adv

  • In a surreptitious manner; stealthily, furtively, secretly. 

How often have the words befuddlingly and surreptitiously occurred in a corpus of books? (source: Google Ngram Viewer )