sechtmad

== Middle Irish == === Etymology === From Proto-Celtic *sextametos. By surface analysis, secht +‎ -mad. === Adjective === sechtmad seventh ==== Descendants ==== Irish: seachtú === Mutation === === Further reading === Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “sechtmad”, in eDIL: Electronic Dictionary of the Irish Language