'non-amortization' originates from Modern English, specifically the negative prefix 'non-' + the noun 'amortization' (the process of amortizing a debt).

'amortization' changed from Old French 'amortir' (to deaden/extinguish) and Late Latin 'admortire' (ad- + mort- 'death') and eventually became the modern English noun 'amortization' meaning the extinguishing of a debt (by payments) in Middle English and Early Modern English, leading to formations like 'non-amortization' in contemporary usage.

Initially, the root meant 'to deaden' or 'make dead'; over time it evolved to mean 'to extinguish' (a debt), and in modern usage it denotes the process of repaying or writing off a debt or cost — so 'non-amortization' now denotes the absence of that repayment/writing-off process.