The word "til" is often used as a contraction of "until." It refers to a point in time up to a specified time or event. Essentially, it indicates that something will happen or continue to happen before a particular time.
The word "til" is derived from the Old English "til," which is a variant of "until." It has been used in English to signify a temporal relationship where an event will continue to occur or be the case before a certain moment.