“Abortive” is related to the word “Abortion” that indicates the end of pregnancy before the birth of a child. Thus, an “abortive” attempt is any attempt that does not bear the desired results. Remember thus.
“Avomine” is a tablet used to prevent nausea or vomiting. Imagine yourself being nauseated by seeing something ugly – an abomination – and you have to have Avomine to prevent yourself from vomiting.