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From letters S, A, L, I, V, A, T, E  I made following words

8 letter words

aestival[11], salivate[11]

7 letter words

aviates[10], estival[10]

6 letter words

avails[9], saliva[9], salvia[9], silvae[9], valise[9], aviate[9], savate[9], valets[9], vestal[9], vitals[9], livest[9], vilest[9], alates[6], saltie[6], stelai[6]

5 letter words

avail[8], alive[8], lavas[8], vasal[8], laves[8], salve[8], selva[8], slave[8], vales[8], valse[8], veals[8], silva[8], vails[8], vials[8], evils[8], levis[8], lives[8], veils[8], vitae[8], valet[8], vital[8], avast[8], stave[8], vesta[8], vista[8], alias[5], aisle[5], alate[5], telia[5], atlas[5], talas[5], least[5], setal[5], slate[5], stale[5], steal[5], stela[5], taels[5], tales[5], teals[5], tesla[5], alist[5], litas[5], tails[5], islet[5], istle[5], stile[5], tiles[5]

4 letter words

lava[7], lave[7], leva[7], vale[7], veal[7], vela[7], vail[7], vial[7], evil[7], live[7], veil[7], vile[7], vasa[7], aves[7], save[7], vase[7], visa[7], vies[7], vise[7], lavs[7], vita[7], tavs[7], vast[7], vats[7], vest[7], vets[7], alae[4], ilea[4], asea[4], aals[4], alas[4], ales[4], lase[4], leas[4], sale[4], seal[4], ails[4], sail[4], sial[4], isle[4], leis[4], lies[4], tala[4], late[4], tael[4], tale[4], teal[4], tela[4], alit[4], lati[4], tail[4], tali[4], lite[4], tile[4], ates[4], east[4], eats[4], etas[4], sate[4], seat[4], seta[4], teas[4], aits[4], sati[4], site[4], ties[4], alts[4], last[4], lats[4], salt[4], slat[4], lest[4], lets[4], tels[4], list[4], lits[4], silt[4], slit[4], tils[4]

3 letter words

ava[6], ave[6], via[6], vie[6], lav[6], lev[6], vas[6], vis[6], tav[6], vat[6], vet[6], aal[3], ala[3], ale[3], lea[3], ail[3], lei[3], lie[3], aas[3], sae[3], sea[3], ais[3], sei[3], als[3], las[3], sal[3], els[3], les[3], sel[3], lis[3], ate[3], eat[3], eta[3], tae[3], tea[3], ait[3], tie[3], alt[3], lat[3], let[3], tel[3], lit[3], til[3], sat[3], tas[3], set[3], its[3], sit[3], tis[3]

2 letter words

aa[2], ae[2], ai[2], al[2], la[2]