Meaning

noun a diagrammatic representation of the earth's surface (or part of it)

noun (mathematics) a mathematical relation such that each element of a given set (the domain of the function) is associated with an element of another set (the range of the function)

verb make a map of; show or establish the features of details of

originShortening or back-formation of Middle English mappemounde, mapemounde (“world map”), from Old French mapamonde, from Medieval Latin mappa mundī, compound of Latin mappa (“napkin, cloth”) and mundus (“world”). See mop for more on the first component. Doublet of mop, nape, and nappe.

Etymology from Wiktionary, CC BY-SA 3.0