1. A covered platform, usually having a separate roof, at an entrance to a building.
2. An open or enclosed gallery or room attached to the outside of a building; a veranda.
3. Obsolete A portico or covered walk.
[Middle English porche, from Old French, from Latin porticus, portico, from porta, gate; see per-2 in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 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.