fíadu

== Old Irish == === Etymology === From Proto-Celtic *weidwūs, from *weyd- (“to know”) +‎ *-wṓs (stative participle suffix). The n-stem inflection is secondary. === Noun === fíadu m witness ==== Inflection ==== ==== Related terms ==== noídiu === Mutation === === References === === Further reading === Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “2 fíada”, in eDIL: Electronic Dictionary of the Irish Language