Meanings
Synonyms & antonyms
proper nounA time interval during the Lower Ordovician period.
Origin
The term was first used by Adam Sedgwick in 1847 with reference to the "Arenig Ashes and Porphyries" in the neighbourhood of Arenig Fawr, in Merioneth, North Wales.
Full word history & related roots →Rhymes & wordplay
Anagrams
Cite this entry
Arenig. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/Arenig
“Arenig.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Arenig. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “Arenig,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/Arenig.
Source: Arenig on Wiktionary, CC BY-SA 4.0.