先刻承知。

先刻承知。

I've known it all along.

先刻(せんこく)承知(しょうち)。

Senkoku shōchi.

先刻 (せんこく)

already; while ago

承知 (しょうち)

knowledge; awareness; consent; acceptance; assent; admitting; compliance; agreement; acknowledgment; acknowledgement; forgiving; pardoning; excusing

Readings: セン、さき、ま.ず

Meanings: before, ahead, previous, future, precedence

Readings: コク、きざ.む、きざ.み

Meanings: engrave, cut fine, chop, hash, mince, time, carving

Readings: ショウ、ジョウ、うけたまわ.る、う.ける、ささ.げる、とど.める、こ.らす、つい.で、すく.う

Meanings: acquiesce, hear, listen to, be informed, receive

Readings: チ、し.る、し.らせる

Meanings: know, wisdom