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From letters E, S, T, A, B, L, I, S, H, E, D  I made following words

11 letter words

established[17]

10 letter words

stablished[16]

9 letter words

bethesdas[15], establish[14], diatheses[13], deathless[13]

8 letter words

shedable[14], bethesda[14], bathless[13], stablish[13], headless[12], hideless[12], headiest[12], headsets[12], dashiest[12], shadiest[12], abseiled[11], beladies[11], disables[11], editable[11], beadiest[11], diabetes[11], basseted[11], besteads[11], esthesia[11], debtless[11], heatless[11], bilsteds[11], heliasts[11], shaliest[11], shelties[11], seisable[10], beasties[10], beatless[10], ableists[10], astilbes[10], bastiles[10], blasties[10], stabiles[10], idealess[9], leadiest[9], steadies[9], dateless[9], detassel[9], tasseled[9], tideless[9]

7 letter words

hidable[13], beheads[13], baldish[13], habited[13], bethels[12], behests[12], leashed[11], halides[11], deashes[11], hassled[11], slashed[11], shields[11], headset[11], heisted[11], daleths[11], stashed[11], beadles[10], baldies[10], disable[10], edibles[10], debases[10], seabeds[10], biassed[10], besides[10], bedless[10], blessed[10], leashes[10], blissed[10], sheilas[10], belated[10], bleated[10], bestead[10], debates[10], betides[10], baldest[10], blasted[10], stabled[10], bilsted[10], halites[10], heliast[10], sheltie[10], bedsits[10], ashiest[10], hessite[10], haslets[10], hatless[10], sheltas[10], saltish[10], tahsils[10], hitless[10], bailees[9], abseils[9], beastie[9], ableist[9], albites[9], astilbe[9], bastile[9], bestial[9], blastie[9], stabile[9], betises[9], stables[9], aediles[8], disease[8], seaside[8], aidless[8], diesels[8], idlesse[8], seidels[8], ideates[8], delates[8], details[8], dilates[8], isleted[8], sedates[8], disseat[8], desalts[8], delists[8], easiest[7], teasels[7], salties[7], listees[7], telesis[7], tieless[7]

6 letter words

behead[12], beheld[12], bashed[12], habile[11], bashes[11], sahibs[11], healed[10], hailed[10], halide[10], heiled[10], lashed[10], shaled[10], halids[10], delish[10], shield[10], dashes[10], sadhes[10], sashed[10], shades[10], dashis[10], dishes[10], hissed[10], beadle[9], bailed[9], belied[9], edible[9], debase[9], seabed[9], abides[9], biased[9], beside[9], blades[9], bedels[9], bleeds[9], bields[9], sheila[9], hassel[9], hassle[9], lashes[9], selahs[9], shales[9], sheals[9], bailee[8], abeles[8], abseil[8], belies[8], biases[8], sables[8], basils[8], aedile[7], leased[7], sealed[7], aisled[7], deasil[7], ideals[7], ladies[7], sailed[7], diesel[7], ediles[7], elides[7], sedile[7], seidel[7], asides[7], daises[7], dassie[7], dieses[7], seised[7], easies[6], easels[6], leases[6]