daylong

adj

1. (not-comparable)Which lasts a day, or approximately so.

   “The Hang En tour involves a difficult daylong trek over limestone mountain paths and along riverbeds to the remote indigenous village of Ban Doong.”

adv

1. (not-comparable)Throughout the day.

   “I feel myself to be a man disgraced, walking nightlong and daylong beyond the Paling of a Garden lush with fountains and flowers, waiting In vain for the....”

   “...silent house with its bare rooms and bone-white walls on which the southern windows cast slanted plaques of light that slide, daylong, towards the...”