Meaning

noun drought-tolerant herb grown for forage and for its seed which yield a gum used as a thickening agent or sizing material

originFrom Hindi ग्वार (gvār), from Sanskrit गोपाली (gopālī, “kind of cucumber”), shortened from गोपालकर्कटी (gopālakarkaṭī, “cowherder's cucumber”), from गोपाल (gopāla, “cowherd”) + कर्कटी (karkaṭī, “cucumber”) (see Latin cucumis and cucurbita).

Etymology from Wiktionary, CC BY-SA 3.0