English

Noun

o-grade ‎(uncountable)

1. (Indo-European linguistics) In Proto-Indo-European linguistics, a term used to describe an ablaut form of a Proto-Indo-European root, characterised by the presence of the */o/ vowel phoneme in place of */e/.

   Ancient Greek γόνος ‎(gónos) is a reflex of *ǵónh₁os ‎(“race”), which is itself an o-grade derivative of the root *ǵenh₁- ‎(“to beget; to produce, bear”).

Related terms

• e-grade
• zero-grade

Anagrams

• dogear, dog-ear