Meaning

noun the bags of letters and packages that are transported by the postal service

noun the system whereby messages are transmitted via the post office

noun a conveyance that transports the letters and packages that are conveyed by the postal system

originEtymology tree Proto-Germanic *malhō Frankish *malhabor. Medieval Latin malader. Anglo-Norman malebor. ▲ Old French malebor. Middle English male English mail From Middle English male, from Anglo-Norman male, Old French male (“bag, wallet”), from Frankish *malha (“bag”), from Proto-Germanic *malhō (“bag, pouch”), from Proto-Indo-European *molko- (“leather pouch”). Compare Dutch maal.

Etymology from Wiktionary, CC BY-SA 3.0