腋臭[wakiga] body odor (odour)
腋毛[wakige] underarm hair
腋窩[ekika] armpit
葉腋[youeki] leaf axil
腋窩腺[ekikasen] axillary gland

腋の下[wakinoshita] armpit
千金の裘は一狐の腋に非ず[senkinnokyuuhaikkonoekiniarazu] an expensive fur coat will not be made with a single fox alone
闕腋の袍[kettekinohou] robe worn by military officials with a round collar, unstitched open sides and no ran
闕腋[ketteki] unstitched, open side of some traditional Japanese clothing

垂迹[suijaku] temporary manifestation by a buddha (in order to save people)
筆迹[hisseki] handwriting
真迹[shinseki] true autograph

事迹[jiseki] evidence
本地垂迹説[honjisuijakusetsu] manifestation theory (holding that Shinto gods are manifestations of buddhas)
迹門[shakumon] first half of the Lotus Sutra, in which the Buddha appears as a spatiotemporally restricted being