King James Bible
King James Version (KJV)

Feminine from uwph; obscurity (as if from covering) -- darkness.
see HEBREW uwph
H5890. ephah
I. עֵיפָה noun feminine darkness; — עֵיפָה שַׁחַר עשֵֹׁה Amos 4:13; עֵפָ֫תָה אֶרֶץ Job 10:22 (Ges§ 90g; "" צַלְמָוֶת).