The list

...of words made from the letters in the phrase MERRY CHRISTMAS has continued to grow. When I mentioned the list to you a few days ago I had found 574 words but as of this morning the total has grown to -- who woulda thunk? -- a whopping 626 words. There may be even a few more but the time has come to bring it to a conclusion and move on to other things. I haven't bothered to put the words n alphabetic order, but you may do it if you want to take the time. Here is my list in the order the words occurred to me:

merry Christ I me my a am as at arm arms army armies may aa mace maces race races racer racers sit sits sat sate sates same tame tames tamer tamers tam tams ram rams cam cams came chime chimes stem stems it its mat mats mast masts cast casts (50) cat cats mite mites smite smites aster asters master masters mist mists mister misters term terms stay stays cherry trey treys tic tics site sites cite cites citer citers team teams ream reams seam seams steam steams steamy stream streams the them they their theism therm therms mystic mystics trim (100) trims cyst cysts misty chat chats hat hats hit hits ham hams sham shams shame shames shamer shamers stammer stammers match matches chimera chimeras mire mires miry ire tire tires sir sirs stir stirs sire sires shirt shirts cash cashes rise rises rim rims rime rimes chaste haste hastes ash (150) ashes stash mash mashes marsh marshes mar mars rash rashes mesh time times timer timers rite rites satire satires stir stirs stirrer stirrers ret rets rest rests try tries sty sties star stars stare stares starer starers tar tars tare tares tear tears rate rates irate imam imams messy mercy (200) march marches marcher marchers starch starchers char chars chart charts arrest arrests heart hearts hearty hear hears shear shears share shares hare hares hair hairs chair chairs reach teach chase chases chaser chasers ate eat eats seat seats sear sears stair stairs rat rats tea teas harm harms (250) harmer harmers charm charms charmer charmers err errs terry tarry tarries hasty stray strays tray trays yea yeas yeas yeasts year years yes say says yet art arts mart marts smarts scam scams scammer scammers camera cameras cay cays scare scares car cars scar scars scary care cares yam yams (300) ray rays raise raises arc arcs crash crashes crasher crashers rhea rheas mare mares scram scrams tam tams ear ears erst mar mars air airs cram craams scream screams cream creams creamy scat scats heist heists cheat cheats east easy chit chits sear sears hart harts harem harems harry harries (350) drare rarer charter charters crass crash crashes crasher crashers share shares sharer sharers char chars chasm chasms hem hems hemmer hemmers trimmer trimmers mr mars tie ties tier tiers rite rites rim rims scrim scrims retch shire shires tram trams mart marts schism mica mice rice he him his her (400) hers shimmer shimmers shimmery smarmy smarmier smarmiest set sets aim aims ace aces meat meats mate mates ahem atheism remit remits remiss resist search chest chests reach charism thrice amity marry marries hysteria hysteric hysterics heir heirs arch arches sherry shir shirs shim shims hermit hermits hamster hamsters thyme raise (450) raises chaise chaises shimmy shimmies carry carries rich richer richest riches sachet sachets shay shays shimmery mayhem smirch smirches charity simmer simmers emir emirs emit emits hire hires hirer hirers crime crimes miter miters martyr cartyrs satry satrys yacht yachts strayer strayers stayer stayers math myth myths mythic schema schemas (500) shirt shirts cart carts trace traces tracer tracers aye ayes essay scythe scythes thesis asset rhyme rhymes rhymer rhymers smith smiths smithy this hate hates hater haters as ha aha hi ahi cashier cashiers racy caste castes hay hey meta carry carries carrier carriers ma mercy mercies emissary amiss miss (550) city hammer hammers trash trashy ashy starry hairy miss mass casher chashers riser risers myrrh misery sitar sitars merit merits itch itches itchy arise arises masher mashers item items crime crimes Amish acre acres shema metric metrics simmer simmers sari saris stymie stymies em ems mesa mesas smash smasher stash (600) sstasher cry cries mastic symmetric ache aches eth eths cater caters Artemis era eras ethic ethics scathe scathes sash miser misers smear smears smeary mime mimes (626)

That's all, folks. Well, probably not. There are undoubtedly some I missed.

You are welcome to point them out to me in the comments.