naginata: a traditional Japanese glaive (polearm historically used to cut down infantry and cavalry)
köken: Compound of 薙ぎ (nagi, the 連用形 (ren'yōkei, “stem form”) of verb 薙ぐ nagu “to mow, to cut down”) + 鉈 (nata, “hatchet, billhook, machete”). The use of the 刀 kanji is jukujikun (熟(じゅく)字(じ)訓(くん)).
aile: 薙刀会釈, 薙刀応答: keeping at a distance, keeping at arm's length, 薙刀競技, 薙刀香薷: a Vietnamese balm plant, 薙刀草履, 薙刀遣い: usage of a naginata, a skilled user of a naginata, 薙刀直し
köken: From Old Swedish glaven (glaffwin, glawan) n, m, glavene n, variant of glävia, glafwia, glafwa f, from Middle Low German glave, gleve, glevie, obl. & pl. glaven, from Old French glaive (“lance,”) from Latin gladius (“sword”); possibly of Celtic origin. Compare Danish glavind, Icelandic glefja, English glaive.