| Udder | n | Churk, Elder, Lily-Hanger, Pue |
| Ugly person (ironic) | n | Beauty |
| Ulcer | n | Impingall |
| Ulcer in the feet of cattle | n | Claw-ill |
| Ulcerated | adj | Wounded |
| Umbelliferous, hollow-stalked plant | n | Kelk |
| Umpire | n | Stickler, Trier |
| Unappetizing | adj | Unstomachable |
| Unblock | v | Unchoke |
| Uncertain | adj | Izey-Tizey |
| Uncertain | n | Parlous |
| Uncertain (of weather) | adj | Caddling, Caddly, Catching, Catchy, Fluttery, Streaky, Voxy |
| Uncle | n | Nuncle |
| Uncongenial (of soil) | adj | Unkind |
| Uncover | v | Unheal |
| Undercooked | adj | Slack |
| Underhand | adj | Back-Door, Snidy |
| Underling | n | Hinderling |
| Underpay | phr | Ninepence, not to pay the old woman her |
| Under-Petticoat | n | Dicky, Flopper |
| Understand | v | Conster |
| Understand | v | Undercumstumble |
| Under-thatcher | n | Snivelling-Gall |
| Undress | v | Unrag, Unray, Unrind |
| Undulate | v | Hover |
| Undulation | n | Bummick |
| Uneasy | adj | Fudgy |
| Uneven | adj | Collywobble |
| Uneven (of crop) | adj | Platty |
| Uneven in texture (of cloth) | adj | Scleezy |
| Unevenness (of boards) | n | Wane |
| Unfairly | adv | Trickumtrully |
| Unfasten | n | Unhasp |
| Unfortunate | adj | Misfortunate |
| Unfriendly | adj | Disanfrenly |
| Unfruitful | adj | Blind |
| Unfit | adj | Unvitty |
| Ungainly | adj | Hodgy, Lammocking, Strommelling |
| Ungainly person or animal | n | Galligantus |
| Unharness | v | Untackle |
| Unhurt | adj | Hale |
| Unidentified herb | n | Ronklewort |
| Unintentionally | adv | Unbemeaning-Like |
| Unite | v | Yot |
| Universal | adj | Varsal |
| Unkempt person | n | Drazil-drezzle |
| Unkind word | n | Misword |
| Unknown | adj | Unknowing |
| Unladen | adj | Aleer |
| Unless | conj | Gnif, Inless, Less |
| Unload | v | Unempt |
| Unmusical | adj | Strim-Strum |
| Unnatural | adj | Unkindly |
| Unploughed land at end of field | n | Headland, Headlong |
| Unproductive (of land) | adj | Beggarly |
| Unravel | v | Tifle, Unreave |
| Unravelled | adj | Shrievy |
| Unreliable | adj | Gimcrack |
| Unrestrained | n | Unstinted |
| Unruly | adj | Gastable |
| Unsatisfactory | adj | Melancholy |
| Unstable | adj | Tittery, Tittling |
| Unsteady (of horse) | adj | Balky |
| Untethered | adj | Slopper |
| Untidily | adv | A-Mullock |
| Untidy | adj | Flopperty, Paixy, Slagged, Slang-Up, Tossy, Unready |
| Untidy person | n | Flummock |
| Untie | v | Untang |
| Unweildy | adj | Unlifty |
| Unwell | adj | Sadly |
| Unwilling | adj | Backward, Shy |
| Uphold | v | Back Up |
| Up-Jenkins (game) | n | Tippem, Tip-It |
| Upon | prep | Pin |
| Upper Thames Valley | n | Vale |
| Uppermost | adv | Toppermost |
| Upright | adj | Pright |
| Uproar | n | Deray, Fillyloo, Oration, Randivoose. Randybow, Slatter-Cum-Drash |
| Uproot | v | Scrapple |
| Upside-down | adv | Arsy-Versy |
| Urine used in cloth-making | n | Sig |
| Use | v | Clop |
| Use Book-English | v | Talk Fine |
| Use one glass or pipe among several in turns | v | Cornish |
| Used as a dry as well as a liquid measure | n | Gallon |
| U-shaped piece of iron which attaches the foot-pin of a plough to the bodkin | n | Clevis |
| Uterus of sow | n | Breeding-Bag |
| Uvula | n | Lavell |
The Society for Wessex Past, Present and Future