Strong's Concordance

Original word: μόχθος
Transliteration: mochthos
Definition (short): hardship
Definition (full): toil, hardship

NAS Exhaustive Concordance

Word Origin: akin to mogis
Definition: toil, hardship
NASB Translation: hardship (3).
NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries.
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Strong's Exhaustive Concordance

From the base of mogis; toil, i.e. (by implication) sadness -- painfulness, travail.

see GREEK mogis

KJV: In weariness and painfulness, in watchings often, in hunger and thirst, in fastings often, in cold and nakedness.
NASB: I have been in labor and hardship, through many sleepless nights, in hunger and thirst, often without food, in cold and exposure.
KJV: For ye remember, brethren, our labour and travail: for labouring night and day, because we would not be chargeable unto any of you, we preached unto you the gospel of God.
NASB: For you recall, brethren, our labor and hardship, how working night and day so as not to be a burden to any of you, we proclaimed to you the gospel of God.
KJV: Neither did we eat any man's bread for nought; but wrought with labour and travail night and day, that we might not be chargeable to any of you:
NASB: nor did we eat anyone's bread without paying for it, but with labor and hardship we kept working night and day so that we would not be a burden to any of you;