This is the 94th most frequent Finnish word.
saakka
"Saakka" means "until" or "up to" in English.
Here, 'saakka' is used to denote the point in time up to which the action of waiting will occur.
Odotan täällä viiteen saakka.
I will wait here until five.
In this sentence, 'saakka' indicates the spatial endpoint of the walking action.
Hän käveli metsikön reunaan saakka.
They walked up to the edge of the forest.
The word 'saakka' is utilized here to express the temporal extent of the task continuation.