a. Sc. and † north. Forms: 4 vndemes, 6 vndemus, -ous, 9 undeemous, -deemis, ondeemas, etc. [ad. ON. údǽmis, gen. of údǽmi (Norw. udøme, MSw. odöme) an unexampled or monstrous thing or deed, f. ú- UN-1 + dǽmi example, instance, related to DEEM v., DOOM sb. The ending has partly been taken as -OUS.] Unexampled, unparalleled, extraordinary, remarkable.
a. 1300. Cursor M., 23235 (Gött.). The fiȝft [pain] es vndemes of dint [Cott. vndemnes dint; Edinb. vndemenes of dint], Þat þa wreches þar sal hint.
1536. Bellenden, Cron. Scot., I. vii. (1541), 6 b/2. Suppone we be vincust (quhilk may nocht succeid but vndemus murdir of ȝow) than sall ye be ane facyll pray to ȝour ennymes. Ibid., VI. xvi. 76 b/2. Thay ruschit on the said Romanis; and maid sic vndemus slauchter on thaym, that [etc.].
1596. Dalrymple, trans. Leslies Hist. Scot., I. 349. Edward gathiris ane armie vndemous.
1808. Jamieson, s.v., Undeemis money, a countless sum.
1871. W. Alexander, Johnny Gibb, x. An ondeemas thing o siller.
Hence Undeemously adv. Sc.
1846. W. Cross, Disruption, xiv. Its groun just undeemously since we cam to Embro.