livelong

nouns

perennial northern temperate plant with toothed leaves and heads of small purplish-white flowers

adjectives

(of time) constituting the full extent or duration
"all the livelong day"
is similar to
including all components without exception; being one unit or constituting the full amount or extent or duration; complete
"gave his whole attention"; "a whole wardrobe for the tropics"; "the whole hog"; "a whole week"; "the baby cried the whole trip home"; "a whole loaf of bread"