A portmanteau or portmanteau word (from "portmanteau (luggage)") is a blend of words in which parts of multiple words are combined into a new word, as in smog, coined by blending smoke and fog, or motel, from motor and hotel. In linguistics, a portmanteau is a single morph that is analyzed as representing two (or more) underlying morphemes.
A portmanteau word is similar to a contraction, but contractions are formed from words that would otherwise appear together in sequence, such as do and not to make don't, whereas a portmanteau is formed by combining two or more existing words that all relate to a single concept. A portmanteau also differs from a compound, which does not involve the truncation of parts of the stems of the blended words. For instance, starfish is a compound, not a portmanteau, of star and fish, as it includes both words in full. Source: Wikipedia
email = Electronic + Mail
Brunch = Breakfast + Lunch
Favicon = Favorite + Icon
Emoticon = Emotion + Icons
Bollywood = Bombay + Hollywood
Biopic = Biography + Picture
Infomercial = Information + Commercial
Brunch = Breakfast + Lunch
Phablet = Phone + Tablet
Netizen = Internet + Citizen
Listicle = List + Article
Romcom = Romantic + Comedy
Prequel = Previous + Sequel
Pokemon = Pocket + Monsters
Newscast = News + Broadcast
Chillax = Chill + Relax
Jeggings = Jeans + Leggings
Freeware = Free + Software
Malware = Malicious + Software
WiFi = Wireless + Fidelity
Netiquette = Internet + Etiquette
Wikipedia = Wiki + Encyclopedia
Yelp = YellowPages + Help
Smog = Smoke + Fog
Shopaholic = Shop + Alcoholic
Frenemy = Friend + Enemy
Clasp = Clutch + Grasp
Splatter = Splash + Splatter
Cosplay = Costume + Play
Sexting = Sex + Texting
Liger = Lion + Tiger
Popsicle = Pop + Icicle
Gastropub = Gastronomy + Pub
Frappuccino = Frappe + Cappuccino
Grapple = Grape + Apple
Mocktail = Mock + Cocktail
Tofurky = Tofu + Turkey
Froyo = Frozen + Yogurt
Webinar = Web + Seminar
Pixel = Picture + Element
Intercom = Internal + Communication
Breathalyzer = Breath + Analyzer
Blog = Web + Log
Bit = Binary + Digit
Bionic = Biology + Electronic
Animatronics = Animation + Electronics
Adware = Advertising + Software
Modem = Modulator + Demodulator
Velcro = Velvet + Crochet
Stash = Store + Cash
Medicare = Medical + Care
Brexit = Britain + Exit
Sitcom = Situational + Comedy
Spanglish = Spanish + English
Edutainment = Education + Entertainment
Moped = Motor + Pedal
Slanguage = Slang + Language
Motel = Motor + Hotel
Chocoholic = Chocolate + Alcoholic
Camcorder = Camera + Recorder
Spork = Spoon + Fork
Mockumentary = Mock + Documentary
Virushka = Virat + Anushka
Infomercial = Information + Commercial
Cronut = Croissant + Doughnut
Pluot = Plum + Apricot
Aromatherapy = Aromatic Oils + Massage Therapy
Labradoodle = Labrador + Poodle
Athleisure = Athletic + Leisure
Bromance = Bro + Romance
Staycation = Stay + Vacation
Twerk = Twist + Jerk
Dramedy = Drama + Comedy
Slacktivist = Slacker + Activist
Hazmat = Hazardous + Material
Avionics = Aviation + Electronics
Webisode = Web + Episode
Alphanumeric = Alphabets + Numbers
Mobisode = Mobile + Episode
Juneteenth = June + Nineteenth
Obamacare = Obama + Healthcare
Stagflation = Stagnation + Inflation
Fortnight = Fourteen + Nights
Shepherd = Sheep + Herder
Mompreneur = Mom + Entrepeneur
Interpol = International + Police
Chortle = Chuckle + Snort
Televangelist = Television + Evangelist
Skort = Skirt + Shorts
Motorcade = Motor + Cavalcade
Metrosexual = Metropolitian + Heterosexual
Knowledgebase = Knowledge + Database
Internet = International + Network
Glamping = Glamour + Camping
Ginormous = Giant + Enormous
Infosys = Information + System
Cyborg = Cybernetic + Organism
Craptacular = Crap + Spectacular
Carjack = Car + Hijack
Brangelina= Brad + Angelina
Bodacious = Bold + Audacious
Affluenza = Affluence + Influenza
Sheeple = Sheep + People
Telethon = Television + Marathon
Electrocute = Electricity + Execute
Botox = Botulinum + Toxin
Comcast = Communication + Broadcast
Snife = Spoon + Knife
Mizzle = Mist + Drizzle
Fantabulous = Fantastic + Fabulous
Hubot = Human + Robot
Fanzine = Fan + Magazine
Oxbridge = Oxford + Cambridge
Crunk = Crazy + Drunk
Bash = Bang + Smash
Brainiac = Brain + Maniac
Hangry = Hungry + Angry
Dumbfound = Dumb + Confound
Workaholic = Work + Alcoholic
Guesstimate = Guess + Estimate