progenitrix
From LSJ
Latin > English (Lewis & Short)
prōgĕnī̆trix: (-ē̆trix), īcis, f. progenitor,
I the foundress or general mother of a tribe or family, Isid. 9, 6, 22.
Latin > French (Gaffiot 2016)
prōgĕnĭtrīx, īcis, f., aïeule, grand-mère : Isid. Orig. 9, 6, 22.
Latin > German (Georges)
prōgenitrīx, trīcis, f. (Femin. zu progenitor), die Stammutter, Ahnfrau, Paul. ex Fest. 232, 8: Plur., Isid. orig. 9, 6, 22.