monophyodont

The story

1. Ancient Greek · derived fromμονοφυής“single”
2. English todaymonophyodont

Ancient Greek μονοφυής (monophuḗs, “single”) (μόνος (mónos, “alone”) + φύω (phúō, “produce”)) + ὀδόντος (odóntos) (genitive of ὀδούς (odoús, “tooth”)).