"until," O.E.
til (Northumbrian), from O.N.
til "to, until," from P.Gmc.
*tilan (cf. Dan.
til, O.Fris.
til "to, till," Goth.
tils "convenient," Ger.
Ziel "limit, end, goal"). A common preposition in Scand., probably originally the accusative case of a noun now lost except for Icelandic
tili "scope," the noun used to express aim, direction, purpose (e.g.
aldrtili "death," lit. "end of life"). Also cf. Ger.
Ziel "end, limit, point aimed at, goal," and compare
till (v.).