This is a very special SWI investigation. It grew from questions about <perspicuous> that Grade 2 student Jake asked me about (from his Big Nate book) and Grade 4 students from Matt (Real Spellers) Berman's class trying to analyze <despicable>. Along the way we run into words like <species>, <special> and most surpisingly to me <spice>! Because we could not figure out how <spice> linked to all these words, I invited Douglas Harper -- the author of Etymonline -- to help me make sense of the trails that link these words over time. 

I hope you enjoy hearing what Douglas had to share as much as I did!