9 letters

weedproof raidproof acidproof skidproof ∙ coldproof moldproof sandproof windproof ∙ prodproof rageproof jokeproof galeproof wileproof holeproof moleproof timeproof toneproof Fireproof ∙ miteproof agueproof waveproof loveproof itchproof washproof mothproof ∙ semiproof leakproof ∙ rackproof tackproof pickproof ∙ tickproof riskproof mealproof zealproof hailproof nailproof soilproof evilproof ballproof foolproof ∙ harmproof germproof ∙ wormproof scumproof slumproof ovenproof ∙ painproof rainproof ∙ spinproof ruinproof lionproof moonproof yawnproof seepproof chipproof slipproof dripproof dampproof vampproof scarproof tearproof wearproof ∙ jeerproof overproof ∙ odorproof spurproof hissproof kissproof lossproof heatproof ∙ gnatproof writproof wiltproof joltproof hintproof shotproof ∙ riotproof plotproof sootproof wartproof jestproof pestproof restproof dustproof ∙ rustproof ∙ smutproof blowproof snowproof hoaxproof frayproof babyproof ∙ pityproof underroof krzysztof Ortskampf Hartrampf Kugelhopf Landekopf Schafkopf Totenkopf Headscarf ∙ semidwarf ∙ hircocerf hippocerf microperf Sturmdorf Oldendorf Ollendorf Dorendorf Neuendorf overscurf Astroturf underturf dauerlauf

10 letters

wheatsheaf ∙ coffeeleaf orangeleaf doubleleaf saddleleaf littleleaf dollarleaf saucerleaf fingerleaf gingerleaf copperleaf letterleaf quiverleaf silverleaf cloverleaf ∙ velvetleaf spiritleaf loracarbef infangthef utfangthef underchief bekerchief enkerchief coverchief underthief overbelief demirelief ∙ semirelief aftergrief heartgrief stouthrief ∙ Shandygaff ∙ chiffchaff ∙ interchaff wringstaff broomstaff ∙ wrainstaff churnstaff understaff shortstaff interwhiff undercliff ∙ subbailiff Bumbailiff ∙ overtariff subsheriff hippogriff ∙ entfaoilff subenfeoff Herreshoff Stroganoff ∙ Selivanoff Nikiforoff unhandcuff roughscuff powderpuff mallowpuff ∙ breadstuff ∙ roughstuff thickstuff creekstuff greenstuff ∙ understuff superstuff mutessarif ∙ strandwolf ∙ Brüderhof musicproof childproof ∙ worldproof soundproof ∙ floodproof swordproof ∙ fraudproof lanceproof slideproof knifeproof surgeproof shakeproof snakeproof quakeproof smokeproof ∙ scaleproof rifleproof smileproof titleproof shameproof flameproof ∙ crimeproof rhymeproof scareproof glareproof noiseproof mouseproof spiteproof hasteproof wasteproof aboveproof nerveproof thiefproof stingproof punchproof hitchproof flashproof crashproof brushproof crushproof ∙ toothproof speckproof prickproof trickproof shockproof ∙ stockproof drinkproof sparkproof rebelproof steelproof ravelproof shellproof ∙ smellproof spellproof spillproof scowlproof steamproof qualmproof venomproof stormproof ∙ odiumproof womanproof stainproof ∙ scornproof Thornproof sleepproof slumpproof spearproof saberproof underproof ∙ tigerproof waterproof ∙ afterproof towerproof armorproof humorproof rumorproof vaporproof sweatproof sleetproof draftproof graftproof theftproof lightproof ∙ sightproof scentproof paintproof taintproof frostproof sprayproof mercyproof rowdyproof follyproof worryproof hurryproof Doppelkopf wheelswarf Wachendorf Bettendorf Wehrmachtf Qebhsennuf

11 letters

cambricleaf latticeleaf flannelleaf lanternleaf featherleaf Leatherleaf ∙ trumpetleaf dauerschlaf utfangethef Couvrechief Neckerchief ∙ infangthief ∙ utfangthief superbelief localrelief photorelief Taperrelief ploughstaff ∙ Mendeléeff Stouthrieff Luftangriff coplaintiff archpontiff Bullmastiff ∙ Bindlestiff Metchnikoff Kojewnikoff Mitrofanoff Vladimiroff Sprengstoff Dragendorff Langendorff Bettendorff counterbuff ∙ Scottsbluff hlidhskjalf hlithskjalf mantleshelf mantelshelf ∙ Königinhof whiffenpoof nauseaproof staticproof rewardproof solaceproof maliceproof strifeproof smudgeproof spongeproof rebukeproof rabbleproof muddleproof needleproof tangleproof tickleproof pimpleproof rattleproof unfireproof satireproof Greaseproof ∙ praiseproof opiateproof plagueproof tongueproof virtueproof sneezeproof rebuffproof scorchproof snatchproof splashproof ∙ squeakproof shriekproof shrinkproof weevilproof thrillproof pistolproof screamproof systemproof rhythmproof wisdomproof reformproof radiumproof pollenproof strainproof verminproof visionproof sermonproof cannonproof weaponproof reasonproof poisonproof tartarproof robberproof pilferproof ∙ daggerproof hungerproof summerproof tamperproof ∙ pepperproof copperproof halterproof winterproof masterproof shiverproof sliverproof showerproof ∙ rancorproof sailorproof terrorproof threatproof insectproof racketproof musketproof bulletproof ∙ rabbitproof profitproof insultproof rodentproof thirstproof mildewproof sorrowproof sundayproof parodyproof heresyproof Kulturkampf Düsseldorf Jägerndorf

12 letters

Infangenthef headkerchief handkerchief ∙ outfangthief ∙ spittlestaff quarterstaff ∙ underbailiff undersheriff ∙ Gegenangriff Adlerangriff counterscoff counterbluff ∙ antidandruff ∙ feedingstuff ∙ malariaproof mecrobeproof microbeproof romanceproof outrageproof salvageproof mistakeproof quibbleproof troubleproof missileproof freckleproof wrinkleproof twinkleproof thistleproof nonfireproof vampireproof lectureproof tortureproof promiseproof repulseproof offenseproof relapseproof remorseproof warningproof scratchproof stretchproof tarnishproof scandalproof quarrelproof sarcasmproof villainproof passionproof treasonproof sunburnproof tornadoproof torpedoproof burglarproof ∙ slumberproof slanderproof thunderproof plunderproof weatherproof ∙ soldierproof flickerproof whisperproof philterproof counterproof ∙ lobsterproof shatterproof ∙ spatterproof sulphurproof measlesproof neglectproof solventproof touristproof poultryproof Kirchenkampf

13 letters

utfangenethef Outfangenthef mynpachtbrief Reichsbauernf marriageproof sprinkleproof pleasureproof pressureproof fractureproof punctureproof moistureproof surpriseproof intrigueproof squirrelproof frictionproof petitionproof mosquitoproof splinterproof squatterproof splendorproof

Words with a ∙ are valid Scrabble words (SOWPODS word list)