use '?' for JOKER (blank)

From letters F, E, A, T, H, E, R, S, T, I, T, C, H, E, S  I made following words

15 letter words

featherstitches[26]

13 letter words

featherstitch[24]

11 letter words

featheriest[17], stretchiest[16], testatrices[13]

10 letter words

hatcheries[18], thearchies[18], thatchiest[18], ceasefires[15], aesthetics[15], starchiest[15], restitches[15], hesitaters[13]

9 letter words

sheatfish[18], rhachises[17], cherishes[17], cheshires[17], catfishes[17], thatchier[17], thatchers[17], sheathers[15], ratfishes[15], heathiest[15], ceasefire[14], fricassee[14], reteaches[14], cheeriest[14], reechiest[14], cheesiest[14], chastiser[14], aesthetic[14], catheters[14], craftiest[14], trifectas[14], theatrics[14], chertiest[14], tachistes[14], chestiest[14], esthetics[14], stretches[14], chartists[14], stitchers[14], chattiest[14], tetchiest[14], feteritas[12], earthiest[12], heartiest[12], hesitater[12], aesthetes[12], hesitates[12], earthsets[12], frisettes[12], trashiest[12], frettiest[12], creasiest[11], sectaries[11], etceteras[11], catteries[11], testacies[11], tesseract[11], secretest[11], scattiest[11], strictest[11], sestertia[9], treatises[9], steatites[9], attesters[9], straitest[9]

8 letter words

cheshire[16], cheetahs[16], chiefest[16], fetiches[16], fetchers[16], hatchers[16], hitchers[16], thatcher[16], hatchets[16], thatches[16], fitchets[16], shereefs[14], rehashes[14], heathier[14], feathers[14], heathers[14], sheather[14], etherish[14], sheathes[14], fetishes[14], freshest[14], freshets[14], harshest[14], thrashes[14], threshes[14], starfish[14], shifters[14], heftiest[14], farthest[14], shittahs[14], cheesier[13], casefies[13], searches[13], creeshes[13], cashiers[13], rachises[13], aetheric[13], hetaeric[13], cheaters[13], hectares[13], recheats[13], teachers[13], fiercest[13], chariest[13], theriacs[13], chestier[13], heretics[13], escheats[13], chastise[13], starches[13], catheter[13], trifecta[13], chattier[13], theatric[13], tetchier[13], tachiste[13], esthetic[13], techiest[13], chatters[13], ratchets[13], chartist[13], chitters[13], restitch[13], stitcher[13], chastest[13], tachists[13], stitches[13], freesias[11], heresies[11], reefiest[11], hearties[11], safeties[11], esthesia[11], feasters[11], sheerest[11], sheeters[11], heisters[11], feterita[11], aesthete[11], hesitate[11], earthset[11], theaters[11], theatres[11], teethers[11], frisette[11], esthetes[11], atheists[11], hastiest[11], staithes[11], shatters[11], fattiest[11], cateress[10], cerastes[10], secretes[10], sesterce[10], scariest[10], etcetera[10], citrates[10], cristate[10], scattier[10], casettes[10], cassette[10], statices[10], scatters[10], astricts[10], trisects[10], cattiest[10], tectites[10], eateries[8], esterase[8], tesserae[8], seriates[8], ariettes[8], iterates[8], teariest[8], treaties[8], treatise[8], estreats[8], restates[8], retastes[8], artistes[8], artsiest[8], striates[8], steatite[8], attester[8], attrites[8], rattiest[8], tartiest[8], titrates[8], tristate[8], testates[8], tastiest[8]