one day

(archaic) second-person personal pronoun: you

human / person / people / individual / man / woman / someone

all day, throughout the day, sunrise to sunset, all around the clock

all night

prefix for species that are wild or residing in mountains

mountain

a surname

suffix for names of mountains / suffix for a temple's honorific mountain name (山号 (sangō))

mountain / temple, temple ground / Short for 比叡山 (Hieizan): Mount Hiei / mine