おおせる

suffix, ichidan verb

manage to do; succeed in doing; see through; finish doing

Attaches to the -masu stem of a verb to express successfully completing the action, often with a sense of effort or perseverance. It is usually written in kana.

• 最さい後ごまで走はしりおおせた。

  I managed to run all the way to the end.

• 彼かれは難むずかしい仕し事ごとをやりおおせた。

  He succeeded in doing the difficult task.

• この本ほんを一ひと晩ばんで読よみおおせるのは大たい変へんだ。

  It's tough to finish reading this book in one night.