unremembrancen.
/(ˌ)ʌnrᵻˈmɛmbr(ə)ns/, U.S. /ˌənrəˈmɛmbrəns/ The action or fact of forgetting or not remembering; lack or failure of recollection.
ΘΚΠ
the mind > mental capacity > memory > faulty recollection > [noun] > forgetfulness, oblivion
forgetelnessa1000
forgetel-shipc1330
forgetting1340
forgettingnessa1387
obliviona1393
unremembrancec1449
forgetness1474
forgetfulness1477
oubliance1477
obliviousness?1531
oblivium1699
irrecollection1738
obliviscence1775
irretention1827
irretentiveness1849
oblivescence1880
Punjab head1887
the mind > mental capacity > memory > faulty recollection > deliberate forgetting, condoning > [noun]
oblivion1563
amnesty1605
abolition1606
unremembrance1725
c1449 R. Pecock Repressor (1860) 474 The vnknowing and the vnremembraunce of these thre..notabilitees.
1620 W. Innes Bundle of Myrrhe 174 Vnremembrance of euill, is falling of sense out of the soule.
1725 I. Watts Logick i. iv. §2 There are some Words which are negative in their original Language, but seem positive to an Englishman,..as..Amnesty, an Unremembrance or general Pardon.
1854 Trewman's Exeter Flying Post 31 Aug. 3/6 The principal transaction was of too peccant a character to cause an entire unremembrance.
1919 I. St. John Journey in War-time 68 In utter unremembrance of the morning's weird settling in I now ventured my head out of the crow's nest.
1995 P. Conroy Beach Music (1996) xxxix. 478 For me memory was the country of the usable past but now I began to wonder if there was not also a danger to unremembrance.
This entry has been updated (OED Third Edition, December 2014; most recently modified version published online December 2021).
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n.c1449