es·pres·so (ĭ-sprĕsō, ĕ-sprĕsō) also ex·pres·so (ĭk-sprĕsō, ĕk-)
n. pl. es·pres·sos also ex·pres·sos
1. A strong coffee brewed by forcing hot water under pressure through darkly roasted, finely ground coffee beans.
2. A serving of this beverage: ordered an espresso with dessert.
[Italian (caffè) espresso, espresso (coffee), past participle of esprimere, to press out, from Latin exprimere : ex-, ex- + premere, to press; see per-4 in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.