Meaning

noun an arrangement of points or particles or objects in a regular periodic pattern in 2 or 3 dimensions

noun small opening (like a window in a door) through which business can be transacted

noun framework consisting of an ornamental design made of strips of wood or metal

originFrom Middle English latis, from Middle French lattis (“lathing”), from Old French lattis, from latte (“a lath”), from Frankish *lattu (“a lath”), from Proto-Germanic *laþô (“board; plank; ledge”), from Proto-Indo-European *(s)latn-, *(s)lat- (“beam; log”). Cognate with Old High German latta (“lath”), (German Latte), Old English lætt (“lath”), Middle Low German lāde (“plank, counter, sales…

Etymology from Wiktionary, CC BY-SA 3.0