matrona
midwife
matron
an older woman in charge
+
-a
feminine noun ending
Matrona means midwife and can be thought of as matron0 + -a1 (feminine noun1), referring to a woman in charge of childbirth.
noun
- midwifeA midwife or a woman who assists in childbirthLa matrona asistió en el parto natural. // The midwife assisted in the natural childbirth.