What is another word for "proneness"?

Roget's Thesaurus (1911) lists these synonyms for "proneness": accubation, accumbent, affect, aid, all, alluvial, applicability, aptitude, aptness, area, azimuth, back, beam, bend, bent, bias, bid, billiard, bowling, butte, calculated, calm, carry, cast, conatus, conduce, conducive, conduciveness, contribute, couch, couchant, cricket, croquet, dead, decumbence, decumbency, decumbent, direction, discumbency, dispose.