"The action of affixing, attaching, or fastening something; the state of being affixed; specifically crucifixion", Late Middle English; earliest use found in Mirour of Mans Saluacioune. From post-classical Latin affīxion-, affīxio action of affixing, especially with reference to the crucifixion, action of affixing a poster from classical Latin affīx-, past participial stem of affīgere + -iō.[affixion etymology, affixion origin, 英语词源]