Grenadine syrup is a cocktail mixer made from fresh pomegranate juice reduced with sugar—like simple syrup with a hint of citrus flavor and stunning red color. The name "grenadine" originates from the French word grenade which means pomegranate, from Latin grānātum "seeded". Grenadine was originally prepared from pomegranate juice, sugar, and water.It is not related to the Grenadines archipelago, which takes its name from Grenada, which is named for Granada, Spain.
Note that pomegranate syrup (sometimes called pomegranate molasses) is not the same as grenadine: pomegranate syrup is more tart, while grenadine is very sweet.
The type of thin silk fabric, so called from 1851, probably is from Grenada.