στυγνάζω
to look gloomy, be sorrowful
στυγνάζω to render gloomy, i.e. (by implication) glower (be overcast with clouds, or sombreness of speech)
Derivation: from the same as G4767;
KJV Usage: lower, be sad. G4767
Thayer:
1) to be sad, sorrowful
2) metaph. of the sky covered with clouds

στυγνάζω
stugnazō
stoog-nad'-zo
From the same as G4767; to render gloomy, that is, (by implication) glower (be overcast with clouds, or sombreness of speech)
KJV Usage: lower, be sad.