2204 - zeó

Strong's Concordance

Original word: ζέω
Transliteration: zeó
Definition (short): fervent
Definition (full): to boil, be hot

NAS Exhaustive Concordance

Word Origin: a prim. verb
Definition: to boil, be hot
NASB Translation: being fervent (1), fervent (1).
NAS Exhaustive Concordance of the Bible with Hebrew-Aramaic and Greek Dictionaries.
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Strong's Exhaustive Concordance

A primary verb; to be hot (boil, of liquids; or glow, of solids), i.e. (figuratively) be fervid (earnest) -- be fervent.
KJV: This man was instructed in the way of the Lord; and being fervent in the spirit, he spake and taught diligently the things of the Lord, knowing only the baptism of John.
NASB: This man had been instructed in the way of the Lord; and being fervent in spirit, he was speaking and teaching accurately the things concerning Jesus, being acquainted only with the baptism of John;
KJV: Not slothful in business; fervent in spirit; serving the Lord;
NASB: not lagging behind in diligence, fervent in spirit, serving the Lord;