Words that come from Proto-Indo-European “h₃ep-os-”
400 words across 44 languages descend from Proto-Indo-European h₃ep-os- — including operation, operate, cooperation, operator, operational, opera, cooperate, cooperating.
See the etymology of h₃ep-os- itself →
English (104)
- operation
- operate
- cooperation
- operator
- operational
- opera
- cooperate
- cooperating
- interoperability
- operatic
- oeuvre
- opus
- operand
- ure
- operationally
- operetta
- interoperable
- operationalize
- operationalization
- inure
- reoperation
- teleoperation
- interoperate
- oper
- preoperational
- noncooperation
- inurement
- enure
- ouvrier
- operationalise
- cooperator
- interoperation
- operationalism
- nonoperational
- opuscule
- teleoperator
- opusculum
- operatically
- postoperation
- operationism
- operationality
- superoperator
- operationalist
- operagoer
- noncooperating
- operatorship
- interoperator
- operationalizable
- nonoperator
- preoperation
- microoperation
- reoperate
- suboperation
- misoperation
- maloperation
- nonoperatic
- intraoperation
- operagoing
- operationist
- noncooperator
- inoperation
- inoperational
- protocooperation
- noninteroperable
- intraoperator
- interoperably
- operatical
- counteroperation
- operatorial
- operalike
- antiopera
- operatee
- multioperation
- operationalistic
- teleoperate
- unoperatic
- operatorless
- nonopera
- operatable
- misoperate
- uncooperating
- eigenoperator
- operationalizability
- semioperatic
- preoperationally
- operettic
- enurement
- ouvrierist
- inureth
- operameter
- modus operandi
- co-operation
- hors d'oeuvre
- disinure
- hyperoperation
- hyperoperator
- metaoperator
- opera-goer
- operettist
- operatress
- overoperate
- underoperate
- cyberoperation
- opuscle
Finnish (40)
- oopperayleisö
- ooppera
- oopperarooli
- operaatioanalyysi
- operaatio
- ooppera-aaria
- oopperarepertoaari
- oopperatähti
- oopperasävelmä
- oopperakilpailu
- oopperateatteri
- operoija
- operoida
- opusnumero
- opus
- oopperalaulaja
- oopperakoulutus
- oopperataiteilija
- oopperavoileipä
- opusluettelo
- oopperasävellys
- binäärioperaatio
- oopperaelokuva
- oopperakohtaus
- oopperasäveltäjä
- oopperaserenadi
- oopperaorkesteri
- oopperamaailma
- ooppera-alkusoitto
- oopperakuoro
- oopperavieras
- oopperalaulajatar
- operaattori
- oopperamelodia
- rauhanturvaoperaatio
- oopperamonttu
- avustusoperaatio
- oopperajuhla
- oopperanäyttämö
- oopperaväki
Italian (38)
- opera
- operetta
- modus operandi
- cooperare
- operaio
- manovra
- uopo
- operare
- operabile
- operativo
- operatività
- operistico
- cineoperatore
- operatore
- inoperabile
- capodopera
- capooperaio
- contromanovra
- operabilità
- inoperabilità
- operaismo
- operaistico
- operettista
- operettistico
- operista
- rioperare
- teleoperatore
- aerocooperazione
- cooperazione
- opuscolo
- opuscoletto
- operativismo
- operazione
- operazionismo
- coopera
- operate
- operette
- operative
Latin (36)
- operari
- opus
- opera
- operandum
- operatus
- operor
- opusculum
- pero
- cooperor
- cooperator
- operaticum
- operarius
- operandus
- operatio
- cooperari
- operans
- inoperor
- operativus
- cooperans
- cooperatio
- inoperari
- cooperaturus
- cooperatus
- cooperandus
- inoperans
- inoperaturus
- inoperatus
- inoperandus
- peronatus
- operator
- cooperare
- operate
- operer
- opero
- operatore
- operativo