abavia
From LSJ
Βουλὴν ἅπαντος πράγματος προλάμβανε → Nihil incohes, nisi inito consilio prius → Vor jedem Handeln fasse einen guten Plan
ăb-ăvĭa: ae, f. avus, avia,
I mother of a great-grandfather, or of a great-grandmother, Dig. 38, 10, 1, § 6; 10, § 17.