Coffee made using steam pressure; a drink of this, usually served strong and black in a small cup.
caffè espresso/ˌkafeɪ ɛˈsprɛsəʊ/ /ˌkafɪ ɪˈsprɛsəʊ/
1930s. From Italian caffè espresso, lit. ‘pressed out coffee’ from caffè + espresso, use as adjective of past participle of esprimere to press out, express.