とうから

adverb

since long ago; for a long time

Adverb indicating that something has been the case from a long time ago or for a long duration. Often used in literary or slightly formal contexts.

• 彼かれはとうからそのことを知しっていた。

  He had known about it since long ago.

• とうから待まっていたが、彼かれは来こなかった。

  I waited for a long time, but he didn't come.