訓 と(げる),つい(に) ・ 音 スイ
漢越音: toại
The road radical 辶 means walking it all the way to the end; the inner part is phonetic sui. Go the whole distance and the task is accomplished: suikou, to carry through.
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
彼は目的を遂げました。 (かれはもくてきをとげました)
He accomplished his goal.