στυγνάζω G4768
stygnázō · stoog-nad'-zo · Verb
from the same as στυγνητός; to render gloomy, i.e. (by implication) glower (be overcast with clouds, or sombreness of speech):--lower, be sad.
2 Occurrences in the King James Bible
Matthew 16:3And in the morning, It will be foul weather to day: for the sky is red and lowring. O ye hypocrites, ye can discern the face of the sky; but can ye not discern the signs of the times?
Mark 10:22And he was sad at that saying, and went away grieved: for he had great possessions.