behind
UK: bɪˈhaɪnd | US: bɪˈhaɪnd
prep. at or to the back of; in support of
adv. in a place or state that has been passed or left
adj. delayed or lagging in progress
The word "behind" originates from Old English behindan, combining bi (indicating proximity) and hindan (referring to the rear). It reflects the spatial concept of something being at the back of another object or delayed in time. Over time, its usage expanded to metaphorical contexts like support ("standing behind a cause") or tardiness ("falling behind schedule").
She stood behind the tree, hidden from view.
The team is behind in the competition by two points.
He left his bag behind in the car.
The theory is supported by evidence hidden behind complex data.
The project is running behind schedule due to delays.