Strong's Concordance

Original word: προσκαρτέρησις
Transliteration: proskarterésis
Definition (short): perseverance
Definition (full): steadfastness

NAS Exhaustive Concordance

Word Origin: from proskartereó
Definition: steadfastness
NASB Translation: perseverance (1).
NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries.
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Strong's Exhaustive Concordance

From proskartereo; persistancy -- perseverance.

see GREEK proskartereo

KJV: Praying always with all prayer and supplication in the Spirit, and watching thereunto with all perseverance and supplication for all saints;
NASB: With all prayer and petition pray at all times in the Spirit, and with this in view, be on the alert with all perseverance and petition for all the saints,