| I (before vowel) | pron | Ch |
| I am | v | Sham |
| Ice over (of water) | n | Keech |
| Ice up (of whetstone) | v | Slame |
| Icicle | n | Aigle, Clinker, Clonker, Cock-Bell, Conkerbell, Daglet, Danglet, Icelet, Icybell, Kinker |
| Idea | n | Item |
| Idiot | n | Boitle, Buffle-Head, Cawney, Chump-Head, Cooten, Doddy, Gumph, Jolter-Head. Stunhead, Stunpoll, Swift, Turniphead |
| Idle | v | Laitch, Muddle about, Piddle, Shockit, Squap |
| Idle person | n | Abbey-Lubber, Harlican |
| Idleness | n | Fever-largin, Sleath |
| Idler | n | Draw-Latch |
| Idolatry | n | Mommetry |
| If | conj | An |
| If (intensive of) | conj | If zo be as |
| Ignorant | adj | Slow-backed |
| Ill | adj | Bad, Badly |
| I'll be buggered | int | I'll be soysed |
| Ill omen | n | Bodement |
| Ill, seriously | adj | Dangerous |
| Ill, terminally | adj | Hitter, in a |
| Illegitimate child | n | Base-Child |
| Ill-mannered | adj | Ignorant |
| Ill-natured | adj | Attern |
| Illness | n | Ail, Evil |
| Ill-tempered | adj | Nattled, Remuce |
| Image | n | Impse |
| Imagine | v | Conceit, Make Wees |
| Imber, person from | n | Bungey |
| Immediate | adj | Immedient |
| Immerse | v | Scowsh |
| Immoral | adj | Outward |
| Impassable | adj | Unpassable |
| Imperfect | adj | Unperfect |
| Imperfectly grown (of corn) | adj | Booted |
| Impertinent | adj | Nosey, Tippertant |
| Impetuous person | n | Mazegerry |
| Implement used to knock spears off barley grains | n | Stamp |
| Impoverish | v | Beggar, Punish |
| Impressed | adj | Press |
| Improper | adj | Unproper |
| Improve | n | Alter |
| Improve in health | v | Crumbs, pick up one's |
| Improvement | n | Betterment, Betterness |
| Improver | n | Proovier |
| Impudence | n | Imperence |
| Impudent | adj | Imperent |
| Impulsive | adj | Fast |
| Impulsive | adj | Random |
| Impute | v | Pute |
| In bloom | adj | Ablow |
| In fair health | adj | Tolerable |
| In front | adv | Afront |
| In good condition | adj | Plasad |
| In great difficulty | adj | Hoved Up |
| In half | adv | Atwo |
| In heat | n | Mack |
| In heat (of cow) | adj | Bull, Bullward |
| In heat (of mare) | adj | Horseward |
| In heat (of sow) | adj | Boarward, Brim |
| In her general health (in phrase "How is she…") | pron | In Herself |
| In his general health (in phrase "How is he…") | pron | In Himself |
| In large clods (of earth) | adj | Clatty |
| In large lumps (of coal) | adj | Roundy |
| In my general health | pron | In Myself |
| In my opinion | phr | Seeming to me |
| In pain | adj | Twingy |
| In pieces | n | All to Hame |
| In such a way | adv | Suchways |
| In the blink of an eye | n | Like Winky |
| In the dirt | adj | Muckson |
| In the fields | adv | Afield |
| Incapable | adj | Unhandy |
| Inclination, strong | n | Month's mind |
| Inclined | adj | Aminded |
| Inclined to | adj | Inclinable |
| Income | n | Comings In |
| Inconsistent | adj | Rumpled-skein |
| Incontinent (of cattle) | adj | Lurry |
| Inconvenience | v | Disoblige |
| Inconvenient | adj | Unconvenient |
| Increase | v | Crease |
| Incubate | v | Rook |
| Incubated (of eggs) | adj | Seated |
| Incubating | adj | Abrood |
| Indecent | adj | Undecent |
| Indeed | int | Aketha, Faith, Faix |
| indemnify | v | Forware |
| Indent | v | Brit |
| Indentation in ground | n | Dimmie |
| Indenture | n | Denture |
| India-rubber | n | India |
| Indictment | n | Ditement |
| Indistinct in speech | adj | Pitcher, like a bumblebee in a |
| Indoors | adv | Ahome, Indel |
| Induce | v | Whinny |
| Indulge | v | Dally |
| Industrious | adj | Deedy, Workish, Work-Bracco |
| Infect | v | Bane |
| Infected (of wound) | adj | Cankered |
| Inferior stone from Swanage quarries, used inside walls | n | Backing |
| Infest | v | Cra-Ler |
| Infirm | adj | Dossity |
| Infirmary | n | Firmary |
| Inflamed | adj | Angry |
| Inflammation | n | Anguish, Information |
| Inflated | adj | Taut |
| Inform | v | Accuse, Make Sensible |
| Informant | n | Author |
| Ingrained | adj | Grained |
| Inhabitant | n | Liver |
| Inherit | v | Calve |
| Injure | v | Cooper |
| Injured | adj | Lampsed |
| Injury | n | Detriment, Scathe |
| Inquest | n | Quest |
| Inquire | v | Quire |
| Insane | adj | Bejingoed |
| Insect, type of | n | Jarworm |
| Insecure | adj | Shimble |
| Insignificant | adj | Two-Penny |
| Insipid | adj | Wallow, Wallowish |
| Insist | v | Sist |
| Insolvency | n | Rumple |
| Instability | n | Solly |
| Instead of | adv | Deficient of |
| Instrument used in making lard | n | Lard-beater |
| Insult | v | Sult, Twang |
| Insulting expression used to woman | int | Dem |
| Intelligence | n | Wit |
| Intelligent | adj | Crappet, Docit, Spacker |
| Intend | v | Tend |
| Intensive (eg "A licking gert 'am") | adj | Licking |
| Interest (financial) | n | Intress |
| Intermittently | prep | Between-whiles |
| Internally | adv | Inly |
| Interrogate | v | Quiz out |
| Interrupting | adj | Vardy |
| Intestines | n | Ropp |
| Intimate | adj | Intimated |
| Intolerable | adj | Past all |
| Intoxicated | adj | Slewy, Tossicated, Tossity |
| Intrusion | n | Bold Making |
| Invert | v | Hulve |
| Invite | v | Accuse, Lathe |
| Invite a neighbour to share a beer before corking the keg | v | Save a Cork |
| Iron | n | Ire |
| Iron grey horse | n | Blue Roan |
| Iron in harness by which foot-chain is attached to bodkin | n | Copse |
| Iron ore, brown | n | Smith-Ore |
| Iron plate at back of chimney | n | Iron-back |
| Iron rod that shakes the shoot of the hopper in a corn mill | n | Damsel |
| Iron, bent | n | Cramp |
| Iron, D-shaped | n | Dee |
| Iron, made of | adj | Ironen |
| Iron, red-hot | n | Heater |
| Irregular | adj | Unregular, Unsuity |
| Irregular strip of grass bounding an arable field | n | Lane |
| Irregularly | adv | Pishty-Wishty |
| Irritable | adj | Attery, Brittle, Corky, Patchy, Tatchy, Tiffy, Twarly, Twirty, Twitchy, Unpeacable |
| Is it not? | int | Yanna |
| Islet | n | Holm |
| Isolated | adj | No-Nation |
| It | pron | She |
| It (in game of tag) | n | Shankey |
| It absolutely is | adj | Tisserer |
| It ain't | n | Tyent |
| Italian iron | n | Tally-Iron |
| Itch | n | Hug, Itchet, Pitchy, Welshman's Hug |
| Itchy | adj | Mangy |
| It's like | adv | Slike |
| Ivy, climbing | n | Ivy-drum |
| Ivy-leaved Toadflax | n | Lavender-Snips, Oxford-Weed, Pedlar's Basket, Roving Jenny, Travelling Sailor |
The Society for Wessex Past, Present and Future