English edit

Etymology edit

sub- +‎ infeudation

Noun edit

subinfeudation (countable and uncountable, plural subinfeudations)

 
English Wikipedia has an article on:
Wikipedia
  1. (UK, law, obsolete) The practice by which tenants, holding land under the king or other superior lord, carved out new and distinct tenures in their turn by subletting or alienating a part of their lands.