Words with the suffix "-ous" include these:
glorious
nervous
wondrous
atrocious
contiguous
garrulous
obvious
stupendous
phosphorous
ferrous
carnivorous
filamentous
Not being Gratuitous, or Obnoxious nor Ungracious, there are thousands of Bodacious, Incongruous, Veracious and Voracious words.
Words with the suffix 'ous' are:ambidextrousambitiousamorousanalogousanonymousanxiousaudaciousautonomousbeauteousblasphemousbodaciousboisterouscadaverouscalciferouscallousPoopouscankerouscantankerouscapriciouscarboniferouscarnivorouscautiousconiferouscontagiouscontemporaneouscontemptuouscontiguouscontinuouscourageouscourteouscuriousdangerousdeleteriousdeliciousdeliriousdisastrousdisingenuousdolorousdubiousefficaciousenormousenviouserogenousextemporaneousfabulousfacetiousfactiousfactitiousfallaciousfamousfelicitousferrousfibrousfictitiousfilamentousflirtatiousfortuitousfractiousfrivolousfuriousgaseousgelatinousgenerousglamorousgloriousgorgeousgraciousgregariousharmonioushazardousheinoushideoushilarioushumorousimperiousimperviousincredulousindustriousinfamousinfectiousingeniousinjuriousinnocuousinsidiousinstantaneousjealousjoyousjudiciouslaboriouslasciviousluminouslusciousluxuriousmagnanimousmaliciousmarvelousmelodiousmeticulousmiraculousmomentousmonogamousmonstrousmucousmysteriousnacreousnauseousnebulousnefariousnervousnotoriousnumerousobliviousobnoxiousobviousodiousodorousofficiousoleaginousomnivorousonerousoviparousperilouspestiferousPhosphorouspiouspoisonouspolygamouspolymorphouspompousponderousporousportentouspreciousprecociousrapturousravenousrendezvousridiculousrighteousrigoroussalaciousscandalousserioussiliceoussimultaneousslanderousspaciousstertorousstrenuoussulfuroussuperfluoussuperstitioussuspicioussynonymoustenacioustenuoustortuoustraitoroustreacheroustremendousubiquitousunanimousunscrupulousvariousvenomousverminousvicariousviciousvictoriousvivaciousvoluminouswondrouszealous
Words don't being with suffixes - by definition a suffix is at the end of a word. Ouster, superfluous.
The suffix is 'ous'
There is no prefix for vigor.
The suffix is -ous here.
The suffix for tedious is -ous.
The suffix for mountain is "-ous".
The suffix of virtuous is -ous.
the suffix is -ous
The suffix of "ridiculous" is -ous.
The suffix of prosperous is -ous.
The suffix of "envious" is "-ous."