A type of Ruci (faith);
1.The Ruci created in the Tattvas (categorise of truth) such as Jīva (soul) etc. due to (naturally obtained) right knowledge (understainding, comprehension and perception), without the sermon of others.
2.The person possessed of Nisargaruci (1).
bhūyattheṇāhigayā jivājīvā ya puṇṇapāvaṃ ca. sahasammuiyāsavasaṃvaro ya roei u nisaggo...
(U 28.17)