For the reason (that).
On account (of), for sake (of).
(by ellipsis) Used alone to refuse to provide a full answer a question begun with "why", usually taken as an anapodoton of the elided full phrase "Because I said so".
By or for the cause that; on this account that; for the reason that.
As is known, inferred, or determined from the fact that.
So that, in order that.
On account of, because of.