Strong's Concordance

Original word: ἀδιάλειπτος
Transliteration: adialeiptos
Definition (short): constantly
Definition (full): incessant

NAS Exhaustive Concordance

Word Origin: from alpha (as a neg. prefix) and dialeipó
Definition: incessant
NASB Translation: constantly (1), unceasing (1).
NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries.
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Strong's Exhaustive Concordance

From a (as a negative particle) and a derivative of a compound of dia and leipo; unintermitted, i.e. Permanent -- without ceasing, continual.

see GREEK a

see GREEK dia

see GREEK leipo

KJV: That I have great heaviness and continual sorrow in my heart.
NASB: that I have great sorrow and unceasing grief in my heart.
KJV: I thank God, whom I serve from my forefathers with pure conscience, that without ceasing I have remembrance of thee in my prayers night and day;
NASB: I thank God, whom I serve with a clear conscience the way my forefathers did, as I constantly remember you in my prayers night and day,