means Juicy and tender, full of moisture in a way that's pleasurable to eat or bite into — and, by extension, the name for fat-leaved plants that store water in their thick tissues.

from From Latin succulentus, 'full of juice,' built on succus (also spelled sucus), meaning 'juice' or 'sap.' That root is a cousin of sugere, 'to suck' — the same family that feeds words like 'suck' and 'suction.' So a succulent is, quite literally, something brimming with the liquid you'd want to draw out, whether that's a peach or a desert plant clutching its hoarded water.