From yaraq (in the sense of vacuity of color); properly, pallor, i.e. Hence, the yellowish green of young and sickly vegetation; concretely, verdure, i.e. Grass or vegetation -- grass, green (thing).
see HEBREW yaraq
H3418. yereq
יֶ֫רֶק noun masculineIsaiah 15:6 green, greenness (on in gardens, see NöZMG 1876, 777 Löwp. 236 f.) — absolute Exodus 10:15; Isaiah 15:6; construct Genesis 1:30 3t.; — עֵשֶׂב יֶרֶק 1:30; 9:3 (both P); דֶּשֶׁא יֶרֶק Psalm 37:2 הַשָּׂדֶה יֶרֶק Numbers 22:4 (E) = green thing, grass; alone Exodus 10:15 (J) green thing, including עֵץ and עֵשֶׂב, Isaiah 15:6.