from the Spanish matriz, meaning 'womb' or 'uterus'
mababa ang matris
"womb is low"
= prone to miscarry
= has a difficult time to conceive
Mababa ang matris ng babae.
The woman has a tendency to miscarry.
Nahihirapan siyang mabuntis kasi mababa ang matris niya.
She's having a hard time getting pregnant because her womb is low.