待またせる

ichidan verb, transitive verb

keep (someone) waiting

Causative of 待つ; used when the subject causes another person to wait.

See also: 待つ

• 友とも達だちを10分ぷんも待またせてしまった。

  I ended up keeping my friend waiting for ten minutes.

• お待またせしてすみません。

  Sorry to have kept you waiting.