- i adfer ... i'w hegluro
 - i'w hudo yno ... iatromathematician
 - iau ... ichorous
 - ichthidin ... iconodule
 - iconodulist ... identicalness
 - identism ... idiotism
 - idiotize ... iesu
 - iesu ... ildio
 - ildio ... illecebration
 - illecebrous ... illuminer
 - illuming ... imbankment
 - imbannered ... imbracery
 - imbraid ... immanifest
 - immanity ... immeshing
 - immethodical ... immortally
 - immortelle ... imparipinnate
 - imparisyllabic ... impeccancy
 - impeccant ... imperdible
 - imperfectibility ... imperviable
 - impery ... implex
 - implexion ... importuner
 - importuning ... imprejudicate
 - imprenable ... improportionate
 - impropriate ... impune
 - impunibly ... inamovable
 - inangular ... inchamber
 - inchambered ... inconcerning
 - inconcinne ... inconversant
 - inconverted ... increpate
 - increpation ... incurious
 - incuriously ... indecorum
 - indefatigability ... indeprecable
 - indeprehensible ... indigene
 - indigent ... indiscussed
 - indisdolubility ... indobriton
 - indocibility ... inductive
 - inductometer ... inee
 - ineffability ... inerrable
 - inerrableness ... inexpert
 - inexpertness ... infanticidal
 - infantine ... infilm
 - infilter ... influxive
 - influxively ... infrigidation
 - infringer ... ingenerat
 - ingenerate ... ingredience
 - ingrediency ... inhiation
 - inhibitory ... inknee
 - inkneed ... innitency
 - innixion ... inoppressive
 - inopulent ... inrunning
 - inrush ... insearch
 - insecable ... insinewing
 - insinuant ... inspersion
 - inspeximus ... institutist
 - institutive ... insurmountableness
 - insurmountably ... intelligential
 - intelligentiary ... interambulacrums
 - interamnian ... intercipient
 - intercitizenship ... interdigital
 - interdigitate ... interjunction
 - interknit ... intermarry
 - intermaxilla ... intermundane
 - intermundian ... interpetalary
 - interpetiolar ... interscapulars
 - interscendent ... intertrigo
 - intertrochanteric ... intice
 - intimacies ... intransgressible
 - intransigentes ... introit
 - intromission ... inunction
 - inunctuosity ... inventer
 - inventful ... invision
 - invitatories ... iodize
 - iodized ... irides
 - iridescence ... irrecognition
 - irrecognizable ... irreparability
 - irreparableness ... irrisible
 - irrision ... isagogical
 - isagogics ... islam
 - islamism ... isodimorphism
 - isodimorphous ... isosod
 - isospondyli ... italianism
 - italianize ... izzard
 
Dictionary
            Welsh - English