Strong's G3975 — παχύνω (verb)
pachuno (pakh-oo'-no) v.
1. to thicken
2. (by implication) to fatten
3. (figuratively) stupefy or render callous
[from a derivative of G4078 (meaning thick)]
KJV: wax gross 
Root(s): G4078 
Hebrew root: πήγνυμι
Occurrences: 2