To hurry or urge someone on; to press someone to act more quickly (transitive).
母は子どもを急かせて支度をさせた。
The mother hurried her child to get ready.
締め切りが迫っているのでチームを急かせた。
Because the deadline was approaching, I urged the team on.
彼を急かせてもいい結果は出ないと思う。
I don't think rushing him will produce good results.