1. Marked by excessive eagerness in offering unwanted services or advice to others: an officious host; officious attention.
2. Informal; unofficial.
3. Archaic Motivated by the desire to help others.
[Latin officiōsus, obliging, dutiful, from officium, duty; see OFFICE.]
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.