An over-matured root crop (ma-) is hard and inedible with woody portions.
wet, hard, not sticky, and inedible
Mangahed tominbangaw a wakay.
The hard and inedible sweet potato began to sprout.
Root crops (om-, may-) become hard and inedible.
past minngahed
Minngahed inhap ko a sodi.
The taro I got became hard and inedible.