してやる

to do for (someone)

Meanings

also して遣る · 為て遣る · 為てやる

  1. godan verb, transitive, usually in kana to do for (someone)
  2. usually in kana to take in; to deceive; to hoodwink

In sentences

彼あの負担ふたんを軽かるくしてやった。 I relieved him of his burden. #116223

私わたしは鉛筆えんぴつを彼かれにかしてやった。 I lent my pencil to him. #158232