modersjpraok (Roermond, Valkenburg) modesjtaal (Sittard) modersjtaal (Valkenburg) móddertaal (Voeren) mojer + taal <span class="searchmatch">mojertaal</span> (linguistics) mother tongue...
<span class="searchmatch">mojertaal</span> (widespread). See there for more alternative forms. Compound of Modder (“mother”) + Schproëk (“language”). Possibly a calque of Latin lingua...