this word was found by one of the my kiddos in the book titled The Thief Lord by Cornelia Funke. i went to dictionary.com to find out what it meant:
here is what we learned:
sur·rep·ti·tious /ˌsɜrəpˈtɪʃəs/ [sur-uhp-tish-uhs] IPA –adjective
1. obtained, done, made, etc., by stealth; secret or unauthorized; clandestine: a surreptitious glance.
2. acting in a stealthy way.
3. obtained by subreption; subreptitious.