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amortisation (n.)[amortisation 词源字典]: chiefly British English spelling of amortization; see -ize.[amortisation etymology, amortisation origin, 英语词源]
amortise (v.): chiefly British English spelling of amortize; for suffix, see -ize. Related: Amortised; amortising.
amortization (n.): 1670s, in reference to lands given to religious orders, from Medieval Latin amortizationem (nominative amortizatio), noun of action from past participle stem of amortizare (see amortize). Of debts, from 1824.
amortize (v.): late 14c., from Old French amortiss-, present participle stem of amortir "deaden," from Vulgar Latin *admortire "to extinguish," from ad- "to" (see ad-) + mortus "dead," from Latin mors "death" (see mortal (adj.)). Originally a legal term for an act of alienating lands. Meaning "extinguish a debt" (in form amortization) is attested from 1824. Related: Amortized; amortizing.