[いこう] /(n-adv,n-t) on and after/as from/hereafter/thereafter/since/(P)/EntL1155110X/
 いこう [1]  seit; von ... an; ab; nach. ⇒  (いご) HE
 [いこう] /(n-adv)(n-t) à partir de/désormais/dorénavant/à l'avenir/1155110
Visszatérés a(z) „以降” laphoz.