P / prōclīvĭtas
noun

prōclīvĭtas

gen. ātis · gender feminine · decl. 3rd
A steep descent; declivity
A steep descent, declivity (post-class.): parvulam proclivitatem digressus, Auct. B. Afr. 37.—
A tendency; disposition; proneness
A tendency, disposition, proneness, propensity, proclivity (class.): ad morbos proclivitas...proclivitas ad suum quodque genus, ad aegrotandum proclivitas. Sed haec in bonis rebus facilitas nominetur, in malis proclivitas, ut significet lapsionem, Cic. Tusc. 4, 12, 27 and 28.