Dictionary entry

σκυθρωπός

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

σκυθρωπός, -όν (also -ή, -όν)

(< σκυθρός, sullen, + ὤψ), [in LXX: Ge 40:7 (רַע), etc.;]

of a gloomy countenance: Mt 6:16, Lk 24:17.†