éifeachtach

== Irish == === Etymology === From Old Irish éifechtach (“effective, efficacious, efficient; weighty, important”). By surface analysis, éifeacht (“force, significance; efficacy, effect; value, importance; sense, substance; achievement, success”) +‎ -ach. === Adjective === éifeachtach (genitive singular masculine éifeachtaigh, genitive singular feminine éifeachtaí, plural éifeachtacha, comparative éifeachtaí) forceful, significant; efficacious, effective; important great, powerful; highly capable ==== Declension ==== ==== Derived terms ==== ainéifeachtach (“ineffective”, adjective) neamhéifeachtach (“ineffective; inefficient”, adjective) === Mutation === === References === Ó Dónaill, Niall (1977), “éifeachtach”, in Foclóir Gaeilge–Béarla, Dublin: An Gúm, →ISBN Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “éifechtach”, in eDIL: Electronic Dictionary of the Irish Language