| 21. | unkauð | ['ʊnkaʊθ] (unbekannt) unknown, strange, uncertain, unfamiliar, unidentified =OE uncúþ |
| 22. | unklään | ['ʊnklɛːn] (unsauber) unclean =OE unclǽne |
| 23. | Unmaines | ['ʊnmaɪnəs] (Unmainesse) (Unfähigkeit) incompetence, inability =OE unmægnes |
| 24. | unniem | [ˈʊnniːm] (immun) immune =Reconstructed OE *unnéme (PGmc *nēmiz) by Fryyu/Freaðowald, calque IS ónæmur |
| 25. | Unnieme | [ˈʊnniːmə] (Unnieme) (Immunität) immunity (quality of being resistant to infection) =unniem + -e, calque IS ónæmi |
| 26. | Unniemechyrve | [ˈʊnniːmətʃʏɐve] (Unniemechyrves) (Immunsystem) immune system =Unnieme + Chyrve, calque IS ónæmiskerfi |
| 27. | Unniemekoyð | [ˈʊnniːməkɔʏθ] (Unniemekoyðe) (Immunologie) immunology =Unnieme + -koyð, calque IS ónæmisfræði |
| 28. | Unricht | ['ʊnʁɪçt] (Unrichtes) (Unrecht) wrong, injustice =OE unriht |
| 29. | unricht | ['ʊnʁɪçt] (unrecht) wrong, unjust =OE unriht |
| 30. | unrichtwais | ['ʊnʁɪçtwaɪs] (ungerecht) unrighteous, unjust =OE unrihtwís |
| 31. | Unsenn | ['ʊnzɛn] (Unsennes) (Unsinn) nonsense, rubbish =un- + Senn (reconstructed OE *senn), calque DE Unsinn |
| 32. | untrum | ['ʊntʁʊm] (gebrechlich, schwach) infirm, weak, sick, ill, frail =OE untrum |
| 33. | Untrumnes | ['ʊntʁʊmnəs] (Untrumnesse) (Gebrechlichkeit) infirmity, frailty, weakness, sickness, illness =OE untrumnes |
| 34. | unäðe | ['ʊnɛːðə] (kaum) hardly, scarcely =OE unéaþe |
| 35. | up | [ʊp] (+dative/accusative) (auf, oben, nach oben) on, upon, on to; up =OE up, uppan |
| 36. | Upland | [ˈuplant] (Uplandes, Upland) (Land) country, countryside =OE upland |
| 37. | Upschyrd | [ˈʊpʃʏɐt] (Upschyrde) (Chirurgie) surgery, operation =up- + reconstructed OE *sċyrd (PGmc *skurdiz), IS uppskurður |
| 38. | upstaigen | ['ʊpstaɪɡən] (upstaiþ, upstoog, upstiege, upjestiejen) (aufsteigen) to climb (up), soar (up), rise See also: staigen =OE upstígan |
| 39. | Upty | ['ʊptyː] (Uptyjes) (Aufzug) lift, elevator =up- + Ty, calque DE Aufzug |
| 40. | Usle | [ˈuːzlə] (Uslen) (Amsel) blackbird =OE ósle |