[prob.a.ble] adj [ME, provable, fr. MF, fr. L probabilis commendable, probable, fr. probare to test, approve, prove--more at prove] (1606) 1: supported by evidence strong enough to establish presumption but not proof "a ~ hypothesis"
2: establishing a probability "~ evidence"
3: likely to be or become true or real "~ events"
[2]probable n (1647): one that is probable