O-grade

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    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/. Indo-European-studies, uncountable

    "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”)."

Example

More examples

"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”)."

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.