Advertisement

*kreue-

*kreuə-, Proto-Indo-European root meaning "raw flesh."

It forms all or part of: 

creatine; creosote; crude; cruel; ecru; pancreas; raw; recrudesce; recrudescence.

It is the hypothetical source of/evidence for its existence is provided by: Sanskrit kravis- "raw flesh," krura- "raw, bloody;" Greek kreas "flesh;" Latin crudus "bloody, raw; cruel," cruor "thick blood;" Old Irish cru "gore, blood," Middle Irish cruaid "hardy, harsh, stern;" Old Church Slavonic kry "blood;" Old Prussian krawian, Lithuanian kraūjas "blood;" Old English hreaw "raw," hrot "thick fluid, serum."