o-grade

English

Noun

o-grade (uncountable)

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

   Coordinate terms: e-grade, zero-grade

   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”).

   • 2006, Donald Ringe, From Proto-Indo-European to Proto-Germanic (A Linguistic History of English; 1)‎^[1], Oxford: Oxford University Press, →ISBN, page 12:

     A considerable number of derived nominals, especially thematic nouns, also exhibited o-grade roots.

Anagrams

• dog ear, dog-ear, dogear, goader