Scallion
WordNet
noun
(1) Young onion before the bulb has enlarged
(2) Plant having a large slender white bulb and flat overlapping dark green leaves; used in cooking; believed derived from the wild Allium ampeloprasum
WiktionaryText
Etymology
Anglo-Norman scalun (cognate with Old French escalogne), from a Proto-Romance derivation of Latin Ascalonia ‘shallot’, from Ascalo ‘Ascalon’ an ancient Palestinian port.