Coffee is my comfort drink. I'm not addicted to it but I love the whole ritual surrounding coffee. Wanna partake in my morning ritual? Then read on :)
A cappuccino is espresso coffee mixed or topped with steamed milk or cream. Espresso itself is an Italian word meaning "pressed out" and called so as it's made in a coffee making machine (first invented in Italy in the beginning of 20th century) that presses water through fine ground coffee.
Cappuccino on the other hand had nothing to do with coffee originally. It comes from the Italian word Cappuchio that means "little hood" . The colour of the coffee reminded Italians of the brown robes of one of the Roman Catholic orders of monks, namely the Capuchins. The Capuchin order of friars was established in 1525 and they wore brown silken robes with pointed hoods.
Trivia: The name of this pious order was later used as the name (first recorded in English in 1785) for a type of monkey often having a hood like tuft of hair on the head. So we also have a monkey, a native of Central and South America, that's called Capuchin.
Sources: http://www.answers.com , http://www.billcasselman.com/