Strong's G4768 — στυγνάζω (verb)
stugnazo (stoog-nad'-zo) v.
1. to render gloomy
2. (by implication) glower (be overcast with clouds, or sombreness of speech)
[from a derivative of an obsolete apparently primary stugo "to hate"]
KJV: lower, be sad 
See also: G4767 
Occurrences: 2