† retour mailn.Scots LawObsolete the rent of an estate, as valued in a retour (sense 2); cf. mailn.1
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1600 Boyds of Penkill Family Papers No. 89. 9 Feb. The retour and nonentrie maills of the lands of..Lagganmarny.
1693 J. DalrympleInst. Law Scotl. (ed. 2) iv. viii. 574 The Retour-mails, or Feu-duties of the same..did belong and pertain to the said Pursuer as Donatar.