propense
adjective
pro·pense prō-ˈpen(t)s 
archaic
: leaning or inclining toward : disposed
Word History
Etymology
borrowed from Latin prōpensus "weighted down, inclined, having a disposition or tendency, ready, eager, favorably disposed," from past participle of prōpendēre "to hang down, (of a person) incline, dispose oneself (toward something)" — more at propend
First Known Use
1528, in the meaning defined above