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From letters L, E, V, O, R, O, T, A, R, Y  I made following words

10 letter words

levorotary[16]

8 letter words

varletry[14]

7 letter words

layover[13], overlay[13], ovately[13], overtly[13], levator[10], oratory[10], realtor[7], relator[7]

6 letter words

overly[12], volery[12], votary[12], travel[9], varlet[9], revolt[9], trover[9], rarely[9], arroyo[9], elytra[9], lyrate[9], realty[9], artery[9], rotary[9], looter[6], retool[6], rootle[6], tooler[6], retral[6], orator[6], rooter[6], torero[6]

5 letter words

leavy[11], vealy[11], ovary[11], laevo[8], laver[8], ravel[8], velar[8], valor[8], volar[8], lover[8], raver[8], rover[8], valet[8], ovate[8], lovat[8], volta[8], volte[8], avert[8], trave[8], overt[8], trove[8], voter[8], looey[8], early[8], layer[8], leary[8], relay[8], royal[8], yarer[8], lorry[8], teary[8], lyart[8], toyer[8], rooty[8], tarry[8], retry[8], terry[8], alert[5], alter[5], artel[5], later[5], ratel[5], taler[5], oater[5], orate[5], tolar[5], rater[5], tarre[5], terra[5], retro[5], rotor[5]

4 letter words

levy[10], vary[10], very[10], lave[7], leva[7], vale[7], veal[7], vela[7], oval[7], levo[7], love[7], vole[7], aver[7], rave[7], vera[7], arvo[7], over[7], rove[7], veto[7], vote[7], volt[7], vert[7], aery[7], eyra[7], yare[7], year[7], aryl[7], lyre[7], rely[7], oyer[7], yore[7], lory[7], toyo[7], arty[7], tray[7], trey[7], tyer[7], tyre[7], ryot[7], tory[7], troy[7], tyro[7], aloe[4], olea[4], oleo[4], earl[4], lear[4], rale[4], real[4], aero[4], oral[4], lore[4], orle[4], role[4], rare[4], rear[4], orra[4], roar[4], late[4], tael[4], tale[4], teal[4], tela[4], toea[4], alto[4], lota[4], tola[4], tole[4], loot[4], tool[4], rate[4], tare[4], tear[4], rato[4], rota[4], taro[4], tora[4], rote[4], tore[4], rotl[4], root[4], roto[4], toro[4], torr[4]

3 letter words

ale[3], lea[3], ole[3], loo[3], are[3], ear[3], era[3], lar[3], oar[3], ora[3], ore[3], roe[3], err[3], ate[3], eat[3], eta[3], tae[3], tea[3], alt[3], lat[3], let[3], tel[3], oat[3], tao[3], toe[3], lot[3], oot[3], too[3], art[3], rat[3], tar[3], ret[3], ort[3]