To name a few:
whitest, cleverest, divest, stoniest, subtlest, truest, quietest, finest, drowsiest, chest, rinderpest, toughest, rankest, modest, ripest, palimpsest, poorest, firmest, blindest, cest, shaggiest, fleshiest, fattest, ernest, unblest, hardest, thriftiest, disinvest, merriest, kindest, kest, funest, smokiest, sleepiest, loftiest, sparsest, vainest, foulest, harvest, baldest, reinvest, kindliest, vest, bucharest, frailest, cheesiest, forrest, fuzziest, saengerfest, fewest, incest, congest, invest, dearest, interest, budapest, hippest, greyest, realest, flattest, emptiest, blest, jest, revest, smallest, ablest, steadiest, gentlest, yellowest, greediest, cloudiest, idlest, horniest, handiest, earliest, overmodest, hastiest, imprest, freshest, simplest, safest, murkiest, blockiest, longest, readiest, easiest, foggiest, leakiest, nicest, plainest, disinfest, digest, tempest, sloppiest, weakest, prest, grossest, meanest, vilest, rightest, lowest, neediest, test, swiftest, surest, reforest, funniest, blandest, hillcrest, calmest, weariest, rosiest, brest, fairest, overearnest, houseguest, reddest, craziest, pettiest, tightest, healthiest, pinkest, severest, rudest, brightest, infest, sorest, leanest, rashest, deadest, inquest, snowiest, nastiest, footrest, boldest, anapaest, stupidest, dimmest, sou'west, softest, sickest, qwest, best, wisest, freest, direst, frankest, supraprotest, request, bravest, sunniest, hangnest, behest, handrest, indigest, strictest, wordiest, darkest, seediest, drest, iciest, prettiest, disinterest, mayest, talkfest, nearest, holiest, naughtiest, disforest, loveliest, wrest, deafest, palest, stoutest, everest, solidest, evilest, surliest, wealthiest, bloodiest, vaguest, roundest, abdest, humblest, dampest, merest, furthest, nest, outjest, strongest, sharpest, coafforest, alcahest, heaviest, hottest, happiest, unhonest, mildest, barghest, wriest, obtest, outwrest, grimmest, widest, moodiest, immodest, bequest, dirtiest, narrowest, wiliest, keenest, soberest, wildest, greatest, clumsiest, stalest, briefest, driest, est, slackest, liveliest, slugfest, circumvest, birdnest, hungriest, friendliest, hartbeest, sanest, stillest, manliest, thickest, newest, loosest, remotest, soonest, dullest, doest, quest, queerest, richest, mightiest, earnest, hammerfest, smoothest, forest, impest, winningest, west, scarcest, eldest, egest, bluest, brownest, suggest, slightest, loneliest, deforest, shortest, headrest, honest, contest, youngest, roomiest, raciest, dumbest, paltriest, thinnest, loudest, slowest, jauntiest, wittiest, choicest, mapquest, lustiest, biggest, squattest, starkest, sourest, queest, tiniest, spiciest, warmest, littlest, redigest, tannest, stablest, southwest, guest, kingliest, unpriest, hollowest, rarest, sorriest, reconquest, wildebeest, gest, ruddiest, fastest, smartest, damnedest, noblest, predigest, speediest, middest, conquest, clearest, afforest, hest, hugest, cruelest, commonest, rainforest, grandest, silliest, basest, laziest, guiltiest, veriest, wettest, grayest, weest, snuggest, strangest, hairiest, protest, windiest, gravest, hoarsest, grumpiest, barguest, busiest, bedrest, scrubbiest, trimmest, noisiest, ingest, tamest, muddiest, firecrest, latest, midwest, maturest, rawest, sexiest, saddest, broadest, northwest, arbalest, minutest, almagest, baddest, manifest, sparest, arrest, arest, faintest, regest, gabfest, gladdest, gloomiest, fanciest, squarest, disafforest, bluntest, filthiest, attest, devest, roughest, angriest, soundest, tersest, shoddiest, zest, stingiest, acquest, shyest, tallest, polychrest, stiffest, backrest, armrest, aest, mellowest, mest, chiefest, luckiest, shadiest, harshest, tenderest, coolest, coldest, dest, shiest, deepest, scurviest, hardiest, alkahest, lightest, cleanest, blankest, snappiest, straightest, songfest, rest, ugliest, dishonest, spriest, fullest, proudest, sternest, undervest, goldcrest, sickliest, archpriest, reafforest, pest, yest, priest, falsest, slimmest, teest, stormiest, gayest, highest, decongest, fest, fiercest, stickiest, oktoberfest, cutest, closest, cheapest, molest, quickest, slyest, anapest, largest, tidiest, sweetest, geest, bunchiest, greenest, oldest, worthiest, lamest, barest, hartebeest, purest, heartiest, furriest, lest, souwest, securest, bitterest, coarsest, farthest, pretest, campiest, sliest, maddest, nighest, inchest, fittest, neatest, detest, steepest, blackest, crest, sturdiest, octoberfest, sagest, unrest, sublimest, oddest
Words with the suffix ance:acceptanceappearancearroganceassistanceclearancecompliancecontinuancedisappearancedistanceeleganceentrancegrievancemaintenanceperformancepredominanceresistancetolerancesubstancetemperanceviligance
Some words that end with the suffix 'fy' are:acidify.amplify.beautify.belfry.calcify.certify.clarify.classify.detoxify.dignify.electrify.emulsify.falsify.fortify.glorify.horrify.identify.intensify.justify.leafy.liquefy.magnify.mystify.notify.nullify.objectify.pacify.purify.qualify.quantify.ratify.rectify.sanctify.solidify.terrify.testify.typify.unify.verify.versify.vilify.vivify.
-idle isn't a suffix. There are words that end with -idle, like bridle, but it isn't a suffix.
There are no common English words that end with the suffix "ankle".
Some words that end or with suffix cain: cocain. marocain.
None. Words end with a suffix.
The suffix for "smallest" is "-est".
Est is a suffix and est means most of.
Some words that end with the suffix 'ogue' include dialogue, epilogue, and monologue.
Some words that end with the suffix "craft" include aircraft, spacecraft, and witchcraft.
Some words that end with the suffix -ct include: direct impact contact respect
Some words that end with the suffix -our include colour, flavour, harbour, and honour.