heap: [OE] Heap is an ancient word, with still the odd non-Germanic relative surviving. Its immediate West Germanic ancestor was *khaupaz, which also produced Dutch hoop (the hope of English forlorn hope), and forms such as German haufen ‘heap’ and Lithuanian kaupas ‘heap’, while not in exactly the same line of descent, point to a common Indo-European source. [heap etymology, heap origin, 英语词源]