n. (Reining)人名；(德、瑞典)赖宁

Rein \Rein\, v. t. [imp. & p. p. {Reined} (r?nd); p. pr. & vb.
n. {Reining}.]
1. To govern or direct with the reins; as, to rein a horse
one way or another.

He mounts and reins his horse. --Chapman.

2. To restrain; to control; to check.

Being once chafed, he can not
Be reined again to temperance. --Shak.

{To rein in} or {To rein up},
(a) to check the speed of, or cause to stop, by drawing
the reins. Hence,
(a) to cause (a person) to slow down or cease some
activity; -- to rein in is used commonly of superiors
in a chain of command, ordering a subordinate to
moderate or cease some activity deemed excessive.
[1913 Webster +PJC]