noun-modifying (irregular)
still dark; not yet dawn
Literary prenominal expression describing the time just before dawn when the sky is still dark. Often used in poetic or narrative contexts.
明けやらぬ空に星がまだ輝いていた。
Stars still shone in the sky that was not yet dawn.
明けやらぬ町を一人で歩いた。
I walked alone through the town still dark before dawn.