Hey! We are getting doubles!

So here is a recap of what has already been used:
read, road, toad, load, liad, liar, lias, bias, bins, sins, sink, pink, pine, mine, mime, lime, time, tile, tire, fire, fine, dine, dime, dire, dare, dart, cart, tart, fart, fort, port, part, mart, hart, hurt, Kurt, Burt, burn, burp, burr, burl, curl, cure, pure, sure, sore, sorb, sort, fort, cork, pork, port, poet, post, host, hose, home, come, core, gore, more, mare, tare, gare, care, cake, bake, bane, bang, sang, song, sing, king, wing, wind, wily, wilt, tilt, kilt, jilt, jolt, bolt, bold, hold, cold, mold, molt, moly, holy, poly, pole, mole, dole, sole, role, rule, bule, mule, mute, cute, cuts, nuts, puts, pots, pats, cats, caos, cars, cash, fash, fast, hast, last, bast, bask, bass, pass, past, pest, fest, feet, fret, free, gree, grey, prey, pray, play, clay, clap, crap, trap, trip, trio, frio, brio, brig, briq, brig, frig, frog, from, prom, prop, drop, drip, trip (again), trap (again), tram,
dram, drum, drud, crud
from Crud to CRUX
Next: change ONE letter to make a NEW word out of CRUX.
Good luck! I think this one will put an end to this game!
(But I had that same thought before)!!!
