use '?' for JOKER (blank)

From letters X, E, R, O, P, H, Y, T, E  I made following words

9 letter words

xerophyte[24]

7 letter words

prythee[15]

6 letter words

ethoxy[19], peroxy[18], exhort[16], expert[15], export[15], trophy[14], theory[12], threep[11], pother[11], thorpe[11], peyote[11], retype[11], poetry[11], hereto[9], hetero[9]

5 letter words

epoxy[17], prexy[17], pyrex[17], proxy[17], hexer[15], oxeye[15], hyper[13], exert[12], oxter[12], ephor[10], hoper[10], tophe[10], thorp[10], peery[10], ropey[10], tepoy[10], ether[8], there[8], three[8], other[8], throe[8], toyer[8], topee[7], peter[7], repot[7], toper[7], trope[7]

4 letter words

poxy[16], oryx[14], expo[13], prex[13], hype[12], hypo[12], hyte[10], they[10], hope[9], phot[9], toph[9], prey[9], pyre[9], pyro[9], ropy[9], type[9], typo[9], here[7], hero[7], hoer[7], thee[7], thro[7], eery[7], eyer[7], eyre[7], oyer[7], yore[7], tyee[7], trey[7], tyer[7], tyre[7], ryot[7], tory[7], troy[7], tyro[7], peer[6], pere[6], pree[6], pore[6], repo[6], rope[6], poet[6], tope[6], pert[6], port[6], trop[6], rete[4], tree[4], rote[4], tore[4]

3 letter words

pyx[15], hex[13], oxy[13], pox[12], hyp[11], rex[10], hey[9], yeh[9], hoy[9], thy[9], hep[8], peh[8], hop[8], poh[8], pht[8], pye[8], yep[8], pry[8], hoe[6], her[6], rho[6], eth[6], het[6], the[6], hot[6], tho[6], eye[6], rye[6], tye[6], yet[6], toy[6], try[6], pee[5], ope[5], per[5], rep[5], pro[5], pet[5], opt[5], pot[5], top[5], ere[3], ree[3], ore[3], roe[3], tee[3], toe[3], ret[3], ort[3], rot[3], tor[3]

2 letter words

ex[9], ox[9], eh[5], he[5], ho[5], oh[5], ye[5], oy[5], yo[5], pe[4], op[4], oe[2], er[2], re[2], or[2], et[2], to[2]