IPA: /ˈkæstɒf/
KK: /ˈkæstˌɔf/
Something that has been thrown away or rejected because it is no longer wanted or needed.
The castoff clothes were donated to charity.
An item or person that has been thrown away or rejected because it is no longer wanted or needed.
The old clothes were considered castoffs and were donated to charity.
Castoff → It is formed from "cast" (from Old Norse *kasta*, meaning to throw) and "off" (meaning away). The word "castoff" refers to something that has been thrown away or discarded.
Think of something that has been 'thrown away' ('cast') and is now 'off' or no longer wanted.