use '?' for JOKER (blank)

From letters F, O, R, G, I, V, I, N, G, N, E, S, S, E, S  I made following words

15 letter words

forgivingnesses[23]

13 letter words

forgivingness[21]

11 letter words

forgiveness[18], fogginesses[16], foreignness[15], ingressives[15], ingressions[12]

10 letter words

fingerings[15], ingressive[14], sovereigns[14], vireonines[13], inversions[13], energising[12], engrossing[12], seignories[11], ingression[11], nigrosines[11], egressions[11], gorinesses[11], ironnesses[10]

9 letter words

forgiving[17], versifies[15], fingering[14], fogginess[14], revenging[14], governing[14], enserfing[13], infringes[13], finessing[13], inversing[13], sovereign[13], vignerons[13], evensongs[13], governess[13], fieriness[12], ossifiers[12], vireonine[12], inversion[12], envisions[12], inverness[12], nerviness[12], eversions[12], revisions[12], greenings[11], resigning[11], egressing[11], sogginess[11], singsongs[11], nigrosine[10], signorine[10], isogenies[10], egression[10], seigniors[10], signories[10], nigrosins[10], gneissose[10], ingresses[10], engrosses[10], noisiness[9]

8 letter words

fevering[15], forgiven[15], forgives[15], verifies[14], feigning[13], fringing[13], forgings[13], grieving[13], regiving[13], infringe[12], refining[12], feigners[12], vigneron[12], evenings[12], veinings[12], evensong[12], severing[12], revising[12], nervings[12], visoring[12], servings[12], isogrivs[12], sinfonie[11], fineries[11], infernos[11], fineness[11], rifeness[11], ossifier[11], finesses[11], ossifies[11], fissions[11], frissons[11], envision[11], vineries[11], innerves[11], nervines[11], eversion[11], revision[11], environs[11], venisons[11], inverses[11], versines[11], versions[11], greening[10], reneging[10], reigning[10], groining[10], ignoring[10], singeing[10], engorges[10], gensengs[10], ginsengs[10], singsong[10], sergings[10], sniggers[10], grossing[10], sneering[9], resining[9], eringoes[9], seignior[9], negronis[9], ironings[9], nigrosin[9], rosining[9], genoises[9], goneness[9], greisens[9], rinsings[9], goriness[9], signiors[9], gneisses[9], seisings[9], ogresses[9], inosines[8], ironness[8], enosises[8], noesises[8], nosiness[8], soreness[8], rosiness[8]

7 letter words

foggier[12], forging[12], foggers[12], foining[11], feigner[11], freeing[11], reefing[11], foreign[11], finings[11], fingers[11], fringes[11], firings[11], fennier[10], finnier[10], inferno[10], reifies[10], refines[10], finesse[10], ingoing[9], greeing[9], girning[9], ringing[9], engorge[9], sieging[9], genseng[9], ginseng[9], signing[9], singing[9], noggins[9], greiges[9], gingers[9], niggers[9], serging[9], snigger[9], soggier[9], gringos[9], ginnier[8], reining[8], negroni[8], ironing[8], engines[8], insigne[8], seining[8], genoise[8], soignee[8], noising[8], greisen[8], ginners[8], rinsing[8], eringos[8], ignores[8], regions[8], signore[8], origins[8], signior[8], signori[8], snoring[8], sorning[8], inosine[7], ironies[7], noisier[7]