From an unused root meaning to extend; properly extent (of time); but used only adverbially (especially with other particles {prefixed}) when (either relative or interrogitive): - {long} when.
Verse
Matrix
Isa 40:22It is he that sitteth upon the circle of the earth, and the inhabitants thereof are as grasshoppers; that stretcheth out the heavens as a curtain, and spreadeth them outH4969 as a tent to dwell in: ▼