遣る
yaru
to do; to have sexual intercourse; to kill; to give (to inferiors animals etc.); to dispatch (a letter
Example sentences
彼は母親に町を案内してやった。
He showed his mother around the city.
彼は彼女に本棚を作ってやった。
He made her a bookshelf.
彼は彼女に服を買ってやった。
He bought a dress for her.