trethan

== Old Irish == === Etymology === Has been folk-etymologized as tre- (“through”) +‎ tonn (“wave”), but Stifter believes that in reality it is from the oblique stem of triäth (“sea”). === Noun === trethan m (genitive trethain) sea, especially when stormy or rough c. 845, St Gall Glosses on Priscian, published in Thesaurus Palaeohibernicus (reprinted 1975, Dublin Institute for Advanced Studies), edited and with translations by Whitley Stokes and John Strachan, vol. II, pp. 49–224, Sg. 66b1 trethan ― glosses Latin gurges ==== Inflection ==== === Mutation === === References === === Further reading === Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “1 trethan”, in eDIL: Electronic Dictionary of the Irish Language