o-grade

noun

linguistics
: a phase of a root or of an affix that appears in an ablaut series and is characterized by the vowel o (see grade entry 1 sense 4)

Word History

First Known Use

1891, in the meaning defined above

Time Traveler
The first known use of o-grade was in 1891

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near o-grade

Cite this Entry

“O-grade.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/o-grade. Accessed 17 Jul. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!