adj. odd·er, odd·est
1. Deviating from what is ordinary, usual, or expected; strange or peculiar: an odd name; odd behavior. See Synonyms at strange.
2. Being in excess of the indicated or approximate number, extent, or degree. Often used in combination: invited 30-odd guests.
a. Constituting a remainder: had some odd dollars left over.
b. Small in amount: jingled the odd change in my pockets.
a. Being one of an incomplete pair or set: an odd shoe.
b. Remaining after others have been paired or grouped.
5. Mathematics Designating an integer not divisible by two, such as 1, 3, and 5.
6. Not expected, regular, or planned: called at odd intervals.
7. Remote; out-of-the-way: found the antique shop in an odd corner of town.
[Middle English odde, from Old Norse oddi, point of land, triangle, odd number.]
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.