Scots, by syncope from Eris, variant of early Scots Ersch, Erisch, alteration (by unexplained vowel change) of Irisch irish
15th century, in the meaning defined at sense 1
“Erse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Erse. Accessed 21 Mar. 2026.
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