Some compound words starting with "hand" include handbag, handshake, handprint, and handcuff.
houseboathouseboyhousebreakhousemaidhouseholdhousebrokenhousecoathousewareshouseworkhousecleaninghousewifehouseplanthousematehousetophousewarming
homeworkhomebodyhometownhomeboyhomelandhomespunhomecoming'homemakerhomemadehomesteadhomestretchhomesickhomeroom
Compound is the word in the list that is a compound word, as it is made up of two separate words - "cow" and "hand", which combine to form a new word with a distinct meaning.
riverbank, riverside, riverbed, riverboat
Fingernail, fingertip, fingerprint.
Some compound words that have the word 'hand' in them are:backhandbeforehandcowhanddeckhanddock handfarmhandfirsthandforehandhandbaghandballhand baskethandbillhandbookhandcarthandclasphandcrafthandcraftmanhandcraftmanshiphandcuffhandfulhandgunhandholdhandkerchiefhandmadehandmaidhandmaidenhand offhandouthandpickedhand printhandrailhandsawhandsethand sewnhandshakehandsomehandspringhandstandhandwritinglonghandoffhandoverhandsecondhandshorthandsecondhandunderhanded
houseboathouseboyhousebreakhousemaidhouseholdhousebrokenhousecoathousewareshouseworkhousecleaninghousewifehouseplanthousematehousetophousewarming
Some compound words starting with "hand" are handbook, handicap, handshake. For "line", examples include lineup and line-up. For "law", we have law-abiding and lawmaker.
butterflyCompound words starting with b:backbitebackdropbackfieldbackfirebackgroundbackhandbacklashbacklogbacksidebackslidebackspinbackstopbackstretchbackstrokebacktrackbackwardbackwashbackwaterbackwoodsbagpipeballroombandwagonbankbookbankrollbarnstormbarnyardbarroombartenderbaseballbaseboardbathroombeachcomberbeachheadbedriddenbedrockbedrollbedspreadbedtimebeelinebellhopbillboardbillfoldblacklistblackmailblacktopblockbusterbloodsuckerbobcatbobtailbookmobileboxcarbrainstormbrainwashbreakfastbrickbatbridgeheadbriefcasebroadcastbrotherhoodbuckshotbuckskinbucktoothbugbearbulldogbulldozerbullfrogbullheadedbullpenbuttercupbutterfingersbutterflybuttermilkcapsize
homeworkhomebodyhometownhomeboyhomelandhomespunhomecoming'homemakerhomemadehomesteadhomestretchhomesickhomeroom
Compound words starting with D:DanceableDaredevilDarkroomDartmouthDeadlineDealershipDeckhandDeerskinDeerstalkerDesktopDewberryDillydallyDinnertimeDinnerwareDirtballDishclothDishpanDishragDishtowelDishwareDishwasherDishwaterDixielandDocklandDocksideDockworkerDockyardDogcartDogcatcherDogfightDogfishDoggoneDoghouseDoglegDogsledDogtrotDogwoodDollhouseDoorhandlesDoorjambDoorknobDoormanDoormatDoorplateDoorpostDoorwayDooryardDotsonDovetailDownbeatDowncastDownfallDowngradeDownlandDownloadDownpipesDownplayDownpourDownstairsDowntimeDowntownDownturnDownwardDrawableDrawbackDrawbridgeDrawcordDrawstringDreamboatDreamlandDreamlessDreamlikeDreamworldDressmakerDressmakingDrillmasterDrinkableDrivewayDrugstoreDrumstickDrywallDuckbillDuckboardsDuckpinsDuckpondDucktailDuckweedDumbbellDumbfoundDumbstruckDumbwaiterDustbinDustcartDustcoverDustlessDustmanDustmenDustpanDustsheet
earlobeearmarkearpieceearplugearringearshotearthwormedgewiseeggshellendgameendpointentrywayevenhandedeverydayevermoreeveryplaceeveryoneeverythingeverywhereeyeballeyebroweyeglasseseyelasheyelinereyepieceeyesore
namedropnameplatenamesake
cakewalk
gunpowder
bandaid
Fallback is a compound word. Falloff and fallout are compound words.