覚おぼえ込こむ

godan verb (-mu), transitive verb

memorize; commit to memory; master

Emphasizes thorough memorization, often through repetition or deep learning, so that the knowledge becomes ingrained.

• 英えい単たん語ごを覚おぼえ込こむまで何なん度ども書かいた。

  I wrote the English words over and over until I had them memorized.

• 彼かれは一いち度ど聞きいた曲きょくをすぐに覚おぼえ込こんでしまう。

  He quickly commits a song to memory after hearing it just once.