The Collaborative International Dictionary
Dismortgage
Dismortgage \Dis*mort"gage\ (?; 48), v. t. [imp. & p. p.
Dismortaged; p. pr. & vb. n. Dismortgaging.]
To redeem from mortgage. [Obs.]
--Howell.
Wiktionary
dismortgage
vb. (context transitive English) To redeem from mortgage.