There are 660 thirteen-letter words containing A, E, G and 2I, https://www.bestwordlist.com/c/a/5/13letterwordswithaegii.htm
ABIOGENICALLY ACCESSORISING ACCESSORIZING ACQUIESCINGLY ADMINISTERING
AEROBIOLOGIES AEROBIOLOGIST AERODIGESTIVE AFFRIGHTENING AGGIORNAMENTI
AGGLUTINATIVE AGRICHEMICALS AGROBIOLOGIES AIRFREIGHTING ALLERGENICITY
ALPHABETISING ALPHABETIZING AMPHIBOLOGIES ANESTHETISING ANESTHETIZING
ANGIOGRAPHIES ANGIOPLASTIES ANIMADVERTING ANTIBOURGEOIS ANTICIGARETTE
ANTIFOREIGNER ANTIGENICALLY ANTIGRAVITIES ANTIGUERRILLA ANTILITTERING
ANTIRELIGIONS ANTIRELIGIOUS APOTHEOSISING APOTHEOSIZING ARCHIPELAGIAN
ARGILLIFEROUS ARPEGGIATIONS ARTERIALISING ARTERIALIZING ASPERGILLOSIS
ASPHETERISING ASPHETERIZING ASTRINGENCIES AUCTIONEERING BABINGTONITES
BACTERIOLOGIC BENEFICIATING BIBLIOGRAPHER BIGNONIACEOUS BILLINGSGATES
BIOECOLOGICAL BIOGEOGRAPHIC BOILERMAKINGS BOILERPLATING BOUGAINVILLEA
BREADWINNINGS CABINETMAKING CALENDARISING CALENDARIZING CALLIGRAPHIES
CANISTERISING CANISTERIZING CANTILEVERING CARCINOLOGIES CARDIOPLEGIAS
CATHETERISING CATHETERIZING CERTIFICATING CHANGEABILITY CHARGEABILITY
CHARIOTEERING CHILDBEARINGS CHIROGRAPHIES CLEISTOGAMIES CLIMATOLOGIES
COLLEGIALISMS COLLIESHANGIE COMMISERATING CONCERTINAING CONFIGURATIVE
CONJUGALITIES COSIGNATORIES CRANIOGNOMIES CREDENTIALING DAMAGEABILITY
DEATTRIBUTING DECARBONISING DECARBONIZING DECARBURISING DECARBURIZING
DECARTELISING DECARTELIZING DECASUALISING DECASUALIZING DECLASSIFYING
DECORTICATING DECRASSIFYING DECREPITATING DEDRAMATISING DEDRAMATIZING
DEDUPLICATING DEFEUDALISING DEFEUDALIZING DEFIBRINATING DEFORMALISING
DEFORMALIZING DEGLACIATIONS DEGLAMORISING DEGLAMORIZING DEGLUTINATING
DEGLUTINATION DEGRADABILITY DELEGITIMATED DELEGITIMATES DEMAGNETISING
DEMAGNETIZING DEMIURGICALLY DEMOCRATISING DEMOCRATIZING DEMUTUALISING
DEMUTUALIZING DEMYELINATING DENTILINGUALS DEPAUPERISING DEPAUPERIZING
DERACIALISING DERACIALIZING DESACRALISING DESACRALIZING DESANCTIFYING
DESEXUALISING DESEXUALIZING DESTABILISING DESTABILIZING DESTIGMATIZED
DESTIGMATIZES DETERIORATING DETERMINATING DETRIBALISING DETRIBALIZING
DIABETOLOGIST DIABOLOLOGIES DIAGEOTROPISM DIAMAGNETISMS DIGRESSIONARY
DISAMBIGUATED DISAMBIGUATES DISASSEMBLING DISCANDERINGS DISCOGRAPHIES
DISENCHAINING DISENCHANTING DISENTANGLING DISENTRAILING DISENTRAINING
DISENTRANCING DISENTRAYLING DISGARRISONED DISGAVELLINGS DISGREGATIONS
DISHEARTENING DISINTEGRABLE DISINTEGRATED DISINTEGRATES DISINTEGRATOR
DISINVIGORATE DISORGANISERS DISORGANIZERS DISPLEASINGLY DISPLEASURING
DISSEMINATING DITTOGRAPHIES DIVELLICATING DOMESTICATING EFFIGURATIONS
EGOTISTICALLY EMARGINATIONS EMBLEMATISING EMBLEMATIZING EMIGRATIONIST
ENCARNALISING ENCARNALIZING ENERGISATIONS ENERGIZATIONS ENFRANCHISING
ENGARRISONING ENIGMATICALLY ENTERTAININGS EPIGRAMMATISE EPIGRAMMATISM
EPIGRAMMATIST EPIGRAMMATIZE EQUIBALANCING EQUILIBRATING ESOPHAGITIDES
ESOPHAGITISES ETHEREALISING ETHEREALIZING ETIOLOGICALLY EUTHANATISING
EUTHANATIZING EVANGELIARIES EVANGELIARION EVANGELIARIUM EVANGELICISMS
EVENTUALISING EVENTUALIZING EXCOGITATIONS EXCORTICATING EXOBIOLOGICAL
EXPROPRIATING EXTERMINATING EXTERNALISING EXTERNALIZING EXTINGUISHANT
FERRIMAGNETIC FIANCHETTOING FIBERGLASSING FIBREGLASSING FILMOGRAPHIES
FOREORDAINING FRAGMENTISING FRAGMENTIZING GALLIMAUFRIES GAZILLIONAIRE
GEITONOGAMIES GELATINATIONS GENEALOGISING GENEALOGIZING GENERALISSIMO
GENERATIONISM GENICULATIONS GENITOURINARY GEODYNAMICIST GEOMETRICIANS
GEOPOLITICIAN GERIATRICIANS GERMANISATION GERMANIZATION GERMINABILITY
GERONTOPHILIA GESTICULATING GESTICULATION GESTICULATIVE GHETTOISATION
GHETTOIZATION GIGANTOLOGIES GILLRAVITCHED GILLRAVITCHES GIMCRACKERIES
GLAIKITNESSES GLOBULARITIES GLYCERINATING GONIOMETRICAL GOVERNABILITY
GRADABILITIES GRAMINOLOGIES GRAMMATICISED GRAMMATICISES GRAMMATICIZED
GRAMMATICIZES GRANDIOSITIES GRANODIORITES GRANULARITIES GRAPHITISABLE
GRAPHITIZABLE GRAVIMETRICAL GREGARIANISMS GUANETHIDINES GUERRILLAISMS
GUESSTIMATING GUTTURALITIES HAGIOGRAPHIES HAIRDRESSINGS HANGABILITIES
HELIOGRAPHIES HELIOGRAPHING HEMAGGLUTININ HEXAMETRISING HEXAMETRIZING
HIERARCHISING HIERARCHIZING HIEROGRAPHIES HISTAMINERGIC HYPERVIGILANT
IATROGENICITY ICHNOGRAPHIES ICONOGRAPHIES IDEOGRAMMATIC IDEOGRAPHICAL
IDEOLOGICALLY ILLEGITIMATED ILLEGITIMATES ILLOGICALNESS IMAGINARINESS
IMAGINATIVELY IMPENETRATING IMPERIALISING IMPERIALIZING IMPERSONATING
IMPREGNATIONS INCARCERATING INCOGITANCIES INCOGNISANCES INCOGNIZANCES
INDEFATIGABLE INDEFATIGABLY INEGALITARIAN INELABORATING INGEMINATIONS
INGENERATIONS INGRAINEDNESS INTEGRABILITY INTEGRALITIES INTERAGENCIES
INTERCALATING INTERCHAINING INTERCHANGING INTERDIGITATE INTERGALACTIC
INTERGLACIALS INTERGRADIENT INTERGRAFTING INTERLAYERING INTERMARGINAL
INTERMARRIAGE INTERMARRYING INTERNALISING INTERNALIZING INTERPLANTING
INTERPLEADING INTERPOLATING INTERREGIONAL INTERRELATING INTERROGATING
INTERROGATION INTERROGATIVE INTERTANGLING INTERTILLAGES INTRANSIGEANT
INTRANSIGENCE INTRANSIGENCY INTRANSIGENTS INVESTIGATING INVESTIGATION
INVESTIGATIVE INVESTIGATORS INVESTIGATORY IRREFRANGIBLE IRREFRANGIBLY
KITEBOARDINGS LEGALISATIONS LEGALIZATIONS LEGISLATIVELY LEGISLATORIAL
LEGITIMATIONS LEGITIMATISED LEGITIMATISES LEGITIMATIZED LEGITIMATIZES
LEXICOGRAPHIC LEXICOLOGICAL LEXIGRAPHICAL LITHOGRAPHIES LIVESTREAMING
LONGANIMITIES MAGISTERIALLY MAGNANIMITIES MAGNETISATION MAGNETIZATION
MAGNIFICENCES MAGNIFICENTLY MAINSTREAMING MAINSTREETING MAINTENANCING
MALARIOLOGIES MANAGEABILITY MANAGERIALISM MANAGERIALIST MARGINALITIES
MARLINGSPIKES MASTERMINDING MATERIALISING MATERIALIZING MATHEMATISING
MATHEMATIZING MEDICAMENTING MEMORIALISING MEMORIALIZING MERCHANDISING
MERCHANDIZING METACOGNITION METASTASISING METASTASIZING METATHESISING
METATHESIZING MICROGRANITES MICROGRAPHIES MIMEOGRAPHING MINERALOGICAL
MINERALOGISED MINERALOGISES MINERALOGISTS MINERALOGIZED MINERALOGIZES
MISADDRESSING MISALIGNMENTS MISASSEMBLING MISCEGENATING MISCEGENATION
MISCHANNELING MISENTREATING MISESTIMATING MISEVALUATING MISPERSUADING
MONOAMINERGIC MORIGERATIONS MULTIAGENCIES MULTIDIGITATE MULTIGRAVIDAE
MULTIREGIONAL NECESSITATING NEGOTIABILITY NEGOTIATRICES NEGOTIATRIXES
NEOLOGISTICAL NEOPAGANISING NEOPAGANIZING NEUROIMAGINGS NIGGARDLINESS
NITROGELATINE NITROGELATINS NONFIGURATIVE NONINCREASING OBJECTIVATING
OCTINGENARIES OLIGOSPERMIAS OPPIGNERATING OPPIGNERATION ORIENTALISING
ORIENTALIZING ORIGINALITIES ORIGINATIVELY OVERACHIEVING OVERDEVIATING
OVERDIAGNOSIS OVERFATIGUING OVERINFLATING OVERLAVISHING OVERSTRAINING
PALEOBIOLOGIC PALINGENESIAS PALINGENESIES PALINGENESIST PARALLELISING
PARALLELIZING PARAMETRISING PARAMETRIZING PARLIAMENTING PATHOGENICITY
PATRILINEAGES PECULIARISING PECULIARIZING PEDANTICISING PEDANTICIZING
PENINSULATING PEREGRINATING PEREGRINATION PERICLITATING PERIGASTRITIS
PERSONALISING PERSONALIZING PHARYNGITIDES PHARYNGITISES PHILANDERINGS
PHLOGISTICATE PICTOGRAPHIES PIEZOMAGNETIC PIGMENTATIONS PLANIGRAPHIES
PLEBEIANISING PLEBEIANIZING PREACHIFYINGS PREAPPOINTING PREBIOLOGICAL
PRECAUTIONING PRECIPITATING PREDOMINATING PREFIGURATING PREFIGURATION
PREFIGURATIVE PREFINANCINGS PREGANGLIONIC PREINSTALLING PREJUDICATING
PREMEDICATING PREMEDITATING PREMIGRATIONS PRENOMINATING PREQUALIFYING
PRESIGNALLING PRESTIGIATORS PREVARICATING PRIMATOLOGIES PRIMIGRAVIDAE
PRIMOGENITARY PRIVATEERINGS PRODIGALITIES PROGENITORIAL PROLIFERATING
PSALIGRAPHIES PSEUDIMAGINES QUADRIGEMINAL QUADRIPLEGIAS QUADRIPLEGICS
QUADRISECTING RADIOGRAPHIES RADIOLABELING RANGEFINDINGS REACCLIMATING
REACCREDITING REACQUAINTING READVERTISING READVERTIZING REATTRIBUTING
REAUTHORISING REAUTHORIZING RECALIBRATING RECIPROCATING RECIRCULATING
RECLASSIFYING RECRIMINATING RECULTIVATING REDUPLICATING REEMPHASISING
REEMPHASIZING REFOCILLATING REFRIGERATING REFRIGERATION REFRIGERATIVE
REGIMENTATION REGIONALISING REGIONALISTIC REGIONALIZING REGISTRARSHIP
REGISTRATIONS REGURGITATING REGURGITATION REHARMONIZING REINCARNATING
REINNERVATING REINOCULATING REINTEGRATING REINTEGRATION REINTEGRATIVE
REINVESTIGATE REINVIGORATED REINVIGORATES REINVIGORATOR RELIGIONARIES
RELUBRICATING RENEGOTIATING RENEGOTIATION RENORMALISING RENORMALIZING
REORIENTATING REPAGINATIONS REPRIVATISING REPRIVATIZING RESOCIALISING
RESOCIALIZING RESTABILISING RESTABILIZING RESTIMULATING RESUSCITATING
REVACCINATING REVENDICATING REVICTUALLING REVINDICATING REVISUALIZING
RUGGEDISATION RUGGEDIZATION SALPINGITISES SAPROGENICITY SATELLITISING
SATELLITIZING SEISMOGRAPHIC SEISMOLOGICAL SEMASIOLOGIES SEMASIOLOGIST
SEMEIOLOGICAL SERODIAGNOSIS SHAPESHIFTING SIALOGRAPHIES SIGNIFICANCES
SIGNIFICATIVE SINGULARITIES SIPHONOGAMIES SLIPSTREAMING SPAGHETTIFIED
SPAGHETTIFIES SPAGHETTILIKE SPECIFICATING SPIROGRAPHIES STAIRSTEPPING
STICKYBEAKING STIPENDIATING STRAIGHTENING STREAMLININGS SUPERPRAISING
SYRINGOMYELIA SYSTEMATISING SYSTEMATIZING TANGENTIALITY TANGIBILITIES
TAXIDERMISING TAXIDERMIZING TELEPATHISING TELEPATHIZING TEMPORALISING
TEMPORALIZING TENOVAGINITIS THEATRICISING THEATRICIZING TRAGICOMEDIES
TRANSPIERCING UNDERDRAINING UNDERPAINTING UNDERPRAISING UNDEVIATINGLY
UNDISGUISABLE UNFAILINGNESS UNFEUDALISING UNFEUDALIZING UNIDEOLOGICAL
UNIMAGINATIVE UNMECHANISING UNMECHANIZING UNMITIGATEDLY UNSTIGMATISED
UNSTIGMATIZED USTILAGINEOUS VAGINECTOMIES VASECTOMISING VASECTOMIZING
VEGETARIANISM VERBIGERATING VERBIGERATION VERMICULATING VIDEOGRAPHIES
VILLEGGIATURA VITILITIGATED VITILITIGATES WELLINGTONIAS WHIGMALEERIES
WHITEWASHINGS WILLIEWAUGHTS WINDBAGGERIES XENODIAGNOSIS ZINCOGRAPHIES