There are 532 eleven-letter words containing A, E, G and 2S, https://www.bestwordlist.com/c/a/5/11letterwordswithaegss.htm
ABIOGENESES ABIOGENESIS ABIOGENISTS ABSTERGENTS ADDRESSINGS AEROLOGISTS
AGELESSNESS AGGRANDISES AGGRESSIONS AGILENESSES AGRANULOSES AGROSTEMMAS
ALGEBRAISTS ALGIDNESSES ALLEGORISES ALLEGORISTS AMBERGRISES AMUSINGNESS
ANAGNORISES ANGELFISHES ANGIOSPERMS ANGRINESSES ANGULARNESS ANILINGUSES
ANISOGAMIES ANTAGONISES APOLOGISERS ASPARAGINES ASPARAGUSES ASPERGILLUS
ASSEGAAIING ASSEMBLAGES ASSENTINGLY ASSIGNMENTS ASSUAGEMENT ASSUBJUGATE
ASTERISKING ASTRINGENTS ASTROLOGERS ASTROLOGIES AUBERGISTES AUSTRINGERS
AUTOGENESES AUTOGENESIS AUTOSEXINGS AUTOSUGGEST AVERAGENESS AZYGOSPORES
BAGGINESSES BAGSWINGERS BEARGRASSES BENTGRASSES BERGAMASKOS BLOGSTREAMS
BLUEGRASSES BRAGADISMES BROUGHTASES BURGLARISES BUSHRANGERS CAGEYNESSES
CALABOGUSES CARESSINGLY CASEINOGENS CASHIERINGS CASINGHEADS CASSEROLING
CATALOGISES CATEGORISES CATEGORISTS CLOVERGRASS COGNATENESS COGNISANCES
CONGRESSMAN CORDGRASSES COSTEANINGS CRABGRASSES CRADLESONGS CRAGGEDNESS
DARLINGNESS DECALOGISTS DECREASINGS DECUSSATING DEERGRASSES DEGARNISHES
DEGAUSSINGS DEGREASANTS DEGREASINGS DEMAGOGISMS DESIGNATORS DETASSELING
DIGITALISES DISARRANGES DISCHARGEES DISCHARGERS DISCOURAGES DISGUISABLE
DISIMAGINES DISORGANISE DISPARAGERS DISPLEASING DOGMATISERS DRAGONESSES
DRAGSVILLES DRESSGUARDS DRESSMAKING DYSSYNERGIA EAGERNESSES EAGLESTONES
EARBASHINGS EASTERLINGS ECSTASISING ECSTASIZING ELAEAGNUSES EMPHASISING
ENGARRISONS ENIGMATISES ENIGMATISTS ENSANGUINES ESCAMOTAGES ESCHEATAGES
ESOPHAGITIS ESOPHAGUSES ESTRANGELOS EVANGELISES EVANGELISMS EVANGELISTS
EXPRESSAGES FATIGUELESS FAWNINGNESS FINGERGLASS FRAGILENESS FREEGANISMS
GABBINESSES GAINFULNESS GAINSTRIVES GALLANTNESS GALLOWSNESS GALVANISERS
GAMEYNESSES GAMOGENESES GAMOGENESIS GANGBUSTERS GANGMASTERS GANGSTERISH
GANGSTERISM GAOLERESSES GARLANDLESS GARMENTLESS GARNISHRIES GASCONADERS
GASEOUSNESS GASOMETRIES GASPINESSES GASSINESSES GASTEROPODS GASTRITIDES
GASTRITISES GASTRONOMES GASTROSCOPE GASTRULATES GATECRASHES GAUDEAMUSES
GAUDINESSES GAUNTNESSES GAUSSMETERS GAUZINESSES GAWKINESSES GAWKISHNESS
GELATINISES GENERALISES GENERALISMS GENERALISTS GENERALNESS GEOPHAGISMS
GEOPHAGISTS GERIATRISTS GERMANENESS GESTALTISMS GESTALTISTS GHASTLINESS
GHASTNESSES GINGERSNAPS GLADFULNESS GLADIOLUSES GLAIKETNESS GLAIKITNESS
GLAMORISERS GLAMOURISES GLAMOURLESS GLARINESSES GLARINGNESS GLASSBLOWER
GLASSCUTTER GLASSHOUSES GLASSMAKERS GLASSPAPERS GLASSWORKER GLAZINESSES
GLEISATIONS GLIOMATOSES GLUCOSIDASE GLYCOSIDASE GLYPHOSATES GOALSCORERS
GOATISHNESS GOATSBEARDS GOATSUCKERS GOLDENSEALS GOLIATHISES GORMANDISES
GOSSAMERIER GRACELESSLY GRACILENESS GRADUALNESS GRAMMARLESS GRANDNESSES
GRANGERISES GRANGERISMS GRAPESTONES GRAPHICNESS GRAPHITISES GRAPINESSES
GRASSCYCLED GRASSCYCLES GRASSHOPPER GRAVENESSES GRAVESTONES GREASEBALLS
GREASEBANDS GREASEWOODS GREATNESSES GRECIANISES GREENSHANKS GREENSPEAKS
GREENSWARDS GREENWASHES GRILLSTEAKS GRUBSTAKERS GUARDEDNESS GUARDHOUSES
GUESSTIMATE GUESTIMATES HAGGARDNESS HAGGISHNESS HAGIOSCOPES HALTINGNESS
HANDGLASSES HANGASHORES HARDGRASSES HARVESTINGS HAUGHTINESS HEADSPRINGS
HORSELAUGHS HOURGLASSES HUSBANDAGES HYPALGESIAS IGNORAMUSES ILLEGALISES
INCREASINGS INTERSTAGES ISINGLASSES ISOANTIGENS JASPERISING JIGGERMASTS
KILOGAUSSES KNOTGRASSES LAGGARDNESS LANGUIDNESS LANGUISHERS LARGENESSES
LASTINGNESS LEGATESHIPS LEGATISSIMO LEGISLATORS LETHARGISES LIFESAVINGS
LOGICALNESS MAGISTERIES MAGISTRATES MAGNESSTONE MAGNETISERS MANGINESSES
MANGOSTEENS MASKALONGES MASKANONGES MASKINONGES MEANINGLESS MEGAGAUSSES
MEGALOSAURS MEGAPARSECS MESHUGAASEN MESOGASTRIA MESOGASTRIC METAGENESES
METAGENESIS MISARRANGES MISASSIGNED MISDIAGNOSE MISHEGAASEN MISMANAGERS
MISPACKAGES MISPLEASING MISREADINGS MISSPEAKING MULTISTAGES MUTAGENESES
MUTAGENESIS MUTAGENISES MYSTAGOGIES MYSTAGOGUES NANOGRASSES NAUGHTINESS
NEGATIVISMS NEGATIVISTS NEWSCASTING NEWSMAKINGS NIGGARDISES NIGHTSCAPES
NIGHTSHADES NYSTAGMUSES OLIGOCLASES OVERDOSAGES OVERGRASSED OVERGRASSES
OVERPASSING OVERSLAUGHS PANEGYRISES PANEGYRISTS PARAGENESES PARAGENESIS
PARAGLOSSAE PARALOGISES PASSAGEWAYS PASSAGEWORK PASSMENTING PEDAGOGISMS
PEPPERGRASS PERSIFLAGES PETRISSAGES PHASCOGALES PHLEGMASIAS PIGMENTOSAS
PLAGIARISES PLASMAGENES PLASTERINGS POLYGAMISES PRAGMATISES PREASSIGNED
PREASSURING PSEUDIMAGOS PSYCHOGASES RANGERSHIPS RANGINESSES RASTERISING
REASSAILING REASSERTING REASSESSING REASSIGNING REASSORTING REGALNESSES
REGISTRANTS REGULARISES REHEARSINGS REORGANISES REPHRASINGS REPOUSSAGES
RESEASONING RETROUSSAGE RICEGRASSES RINGMASTERS ROSEMALINGS SACRILEGIST
SAGEBRUSHES SAGITTARIES SALTIGRADES SANDBAGGERS SANDERLINGS SANDGLASSES
SANDGROPERS SANDGROUSES SANGIOVESES SANGUINEOUS SAPROGENOUS SARCOLOGIES
SAUNTERINGS SCAFFOLAGES SCAMPERINGS SCAPEGRACES SCAPIGEROUS SCATOLOGIES
SCATTERGUNS SCATTERINGS SCAVENGINGS SCENARISING SCRAGGINESS SCRAGGLIEST
SCRAPEGOODS SCREENAGERS SCRIMMAGERS SCRUMMAGERS SEABORGIUMS SEACHANGERS
SEGREGATORS SEGUIDILLAS SEIGNORAGES SEISMOGRAMS SEISMOGRAPH SEMASIOLOGY
SERGEANCIES SERGEANTIES SERIALISING SEXAGESIMAL SEXUALISING SHAGGEDNESS
SHAGGYMANES SHANGHAIERS SHARENTINGS SHARPENINGS SHEBAGGINGS SHENANIGANS
SHILLELAGHS SHOEMAKINGS SIALAGOGUES SIALOGOGUES SIEGECRAFTS SIGNALMENTS
SIGNATORIES SINGULARISE SLACKENINGS SLAISTERING SLUGGARDISE SLUICEGATES
SMARAGDITES SMATTERINGS SMIFLIGATES SOCDOLAGERS SOGDOLAGERS SOUNDSTAGES
SPARINGNESS SPHENOGRAMS SPINIGRADES SPONGEWARES SPRINGHEADS SQUARSONAGE
SQUETEAGUES STAGECRAFTS STAGESTRUCK STAGGERBUSH STAGGERIEST STAGGERINGS
STAGINESSES STAGNANCIES STALAGMITES STALLENGERS STALLINGERS STAMMERINGS
STARMONGERS STARVELINGS STEALTHINGS STEATOPYGAS STEGANOPODS STEGOSAURUS
STENOGRAPHS STEREOGRAMS STERNALGIAS STIGMATISED STIGMATISER STIGMATISES
STIGMATIZES STRAGGLIEST STRAIGHTENS STRAIGHTEST STRANGENESS STRANGURIES
STRATEGISED STRATEGISES STRATEGISTS STRATEGIZES STRAUGHTEST STRAVAIGERS
STREAMLINGS SUBAGENCIES SUBHEADINGS SUBIMAGINES SUBMANAGERS SUBTANGENTS
SUFFIGANCES SUGARALLIES SUGARBUSHES SUGARHOUSES SUGARLOAVES SUPERAGENTS
SUPERCARGOS SUPERGIANTS SUPERORGASM SURCHARGERS SURPLUSAGES SURROGACIES
SWAGGERINGS SWITCHGEARS TALLGRASSES TANGINESSES TASSELLINGS TEARGASSING
TEASELLINGS TELEMESSAGE TESSARAGLOT TESSELATING TIMEPASSING TOADGRASSES
TOGAVIRUSES TRANSGENICS TRAVERSINGS TRESPASSING TURFGRASSES UNGUESSABLE
UNSEASONING UNSWEARINGS USQUEBAUGHS VAGINITISES VAGRANTNESS VAGUENESSES
VANTAGELESS VERNISSAGES VULGARISERS WAGGISHNESS WAITRESSING WEBCASTINGS
WINEGLASSES WINGSPREADS WIREGRASSES XENOGLOSSIA