Definition of retainder in US English:

retainder

noun

historical
  • 1Law. The action or fact of retaining money, goods, or property for oneself; an instance of this.

  • 2A token or badge given to a follower by a sovereign or noble as a sign of his retainership. Now rare (historical after 16th cent.).

  • 3Engagement of a person as a servant or follower; an instance of this. Also: maintenance by a sovereign or noble of a company of followers or dependants, who give (especially military) service in return for money, patronage, or protection.

Origin

Late Middle English. Either a variant or an alteration of retainer, probably after remainder. Compare also attainder.

Pronunciation

retainder

/rɪˈteɪndə/