Meaning

noun any of various leafy plants or their leaves and stems eaten as vegetables

noun green color or pigment; resembling the color of growing grass

noun a piece of open land for recreational use in an urban area

originFrom Middle English grenes, equivalent to green + -s. Compare Saterland Frisian Gräinieten (“vegetable”), West Frisian grienten (“vegetables, greens”), Dutch groenten (“vegetables, greens”), German Low German Gröönten (“vegetables, greens”), Danish grøntsager (“vegetables”), Swedish grönsaker (“vegetables”).

Etymology from Wiktionary, CC BY-SA 3.0