Untill

Part of speech: conjunction, preposition

Definitions

1. Up to the moment when a stated event happens, used to show how long something continues before it changes
2. Describing a period that lasts up to the point at which a particular event or condition begins
3. Indicating the time up to which something goes on, often followed by a clause or a specific time

Etymology: "Untill" is an obsolete spelling of "until", and the two are the same word with the same history. Its earlier forms in Middle English included "vntil", "ontil" and "ontill", and the word probably took its shape from a northern variant of "unto", which reached English alongside the more familiar "till" that had come into the language from Old Norse. The spelling with a double "l" was simply one of many that English writers used before spelling settled, so the doubled letter tells you nothing about a separate meaning or origin. Analysed on the surface, the word splits into "un-", meaning "against", "toward" or "up to", and "till", meaning "up to a point in time". Put together, "until" literally means "up to" a given time, which matches the sense of "up to when" that the word still carries today.