at (one's) expense

1. One's financial responsibility. Once I learned that the trip was at my expense, I decided not to go.

2. To one's detriment or disadvantage. I was furious when I heard the other kids telling jokes at my little brother's expense.

Name	Pronounced	Usage
Rohese	-	Medieval English
Jaylee	JAY-lee	English (Modern)
Norris	NAWR-is	English
Zornitsa	-	Bulgarian
Metrodora	-	Ancient Greek
Thomas	TAHM-əs (English), TOM-əs (English), to-MAH (French), TO-mahs (German, Dutch), tho-MAHS (Greek)	English, French, German, Dutch, Swedish, Norwegian, Danish, Greek, Biblical, Biblical Latin, Biblica