rare. [a. Fr. admortization, -isation, ad. med.L. (12th c.) admortizātiōn-em, n. of action f. admortizā-re = admortificā-re, admortī-re to reduce to mortmain; really a latinizing of OFr. amortir, amortiss-ant, assimilating it to vbs. of Gr. origin in -īzare: see -IZE. More commonly AMORTIZATION.] The reduction of lands or tenements to mortmain.
1753. Chambers, Cycl. Supp., Admortization denotes the acquisition of lands, by a monastery, college, church, chapel, or even lay corporation.
