potence

[poht-ns] /ˈpoʊt ns/
noun
1.
Origin
1375-1425; late Middle English < Old French < Latin potentia potency
British Dictionary definitions for potence

potency

/ˈpəʊtənsɪ/
noun (pl) -tencies, -tences
1.
the state or quality of being potent
2.
latent or inherent capacity for growth or development
Word Origin
C16: from Latin potentia power, from posse to be able
Word Origin and History for potence
n.

"potency," early 15c., from Old French potence "power," from Latin potentia (see potent).