adversa
From LSJ
τὰ δὲ πεπερασμένα πεπερασμενάκις ἀνάγκη πεπεράνθαι πάντα → and the product of a finite number of things taken in a finite number of ways must always be finite
adversa adversae N F :: enemy/adversary/opponent (female)
adversa, ōrum, v. adversus 2.
