Noah Webster's Dictionary 1. (n.) The quality or state of being persistent; staying or continuing quality; hence, in an unfavorable sense, doggedness; obstinacy. 2. (n.) The continuance of an effect after the cause which first gave rise to it is removed 3. (n.) The persistence of motion. 4. (n.) Visual persistence, or persistence of the visual impression; auditory persistence, etc.

Multi-Version Concordance Persistency (1 Occurrence) Luke 11:8 "I tell you that even if he will not rise and give him the loaves because he is his friend, at any rate because of his persistency he will rouse himself and give him as many as he requires. (WEY)