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Greek verb · G1231

διαγινώσκω

diaginoskodee-ag-in-o'-sko

to distinguish, ascertain exactly; As Athen. law-term

2 uses in the Greek text, one for each word STEP Bible has tagged with this key

Concordance spelling: diaginṓskō

Word page · Part of the concordance, one page for every word of the Hebrew and Greek text. Strong's G1231is this word's number in James Strong's 1890 index of the King James Bible.

  • 1 of 27
    New Testament books
  • 2
    spellings
  • 2
    meanings

The definition in full

Strong's key (1890) · G1231

to know thoroughly, i.e. ascertain exactly

The King James renders it: (would) enquire, know the uttermost.

James Strong, The Exhaustive Concordance of the Bible (1890), public domain. Strong indexed the King James text, and this site quotes his entry as that index.

Summary

diaginosko is rendered "to distinguish, ascertain exactly; As Athen. law-term". It stands 2 times in the Greek text, across one book.

  • Two of the uses stand in Acts, more than in any other book.
  • The lexicon lists two meanings for it, beginning with "to distinguish, ascertain exactly".
  • Its first use in canonical order opens the ledger below.Acts 23:15Now then, you and the Sanhedrin petition the commander to bring him down to you on the pretext of examining his case more carefully. We are ready to kill him on the way.”
  • The Greek text spells it two different ways.

The first use

Now then, you and the Sanhedrin petition the commander to bring him down to you on the pretext of examining his case more carefully. We are ready to kill him on the way.”

Acts 23:15διαγινώσκειν

The first use, in the order of the New Testament's books.

Where the word stands

Two of the word's two uses are in Acts.

The other 26 New Testament books never use the word.

What the word means

The lexicons give this word two senses, and a verse uses one of them at a time: to distinguish, ascertain exactly, and As Athen. law-term.

Each meaning, and the words it is translated by

The English STEP Bible gives each use, word by word, and how many times.
to distinguish, ascertain exactlyAct.23:15Tagged as
  • to examine1
WhereActs 23:15Now then, you and the Sanhedrin petition the commander to bring him down to you on the pretext…
As Athen. law-termto determineTagged as
  • I will examine1
WhereActs 24:22Then Felix, who was well informed about the Way, adjourned the hearing and said…

The words built on the same word-part

Each word below begins with the same letters this one begins with. A shared word-part shows a family. It does not settle what any one of them means, so each word carries its own uses on its own page. Scholars call that shared part the stem.

διαγγέλλωdiangelloto proclaimUses3
διαγίνομαιdiaginomaito passUses3
διάγωdiagoto liveUses2
διαγογγύζωdiagongyzoto murmurUses2
διάγνωσιςdiagnosisdecisionUses1
διαγρηγορέωdiagregoreoto wakeUses1
διαγνωρίζωdiagnorizoto reportUsesnot recorded

All 2, in canonical order

Every use, in order

Every use, grouped by book, with its verse.

2 spellings and their grammar

STEP Bible tags every word of the Hebrew and Greek text with its spelling and its grammar. Both lists below count the rows printed underneath, written out in English, with the code beside each one as it was tagged.

How it is spelled

  • διαγινώσκειν1
  • διαγνώσομαι1

The grammar of each form

  • verb · future middle form, indicative · 1st person singular1V-FDI-1S
  • verb · present active, infinitive (“to…”)1V-PAN

Acts

two uses
  • Now then, you and the Sanhedrin petition the commander to bring him down to you on the pretext of examining his case more carefully. We are ready to kill him on the way.”

    Acts 23:15

    • διαγινώσκεινdiaginoskeinverb · present active, infinitive (“to…”)tagged: to examine
  • Then Felix, who was well informed about the Way, adjourned the hearing and said, “When Lysias the commander comes, I will decide your case.”

    Acts 24:22

    • διαγνώσομαιdiagnosomaiverb · future middle form, indicative · 1st person singulartagged: I will examine

Where it leads

How the numbers are counted

Every count on this page comes from STEP Bible's tagged Hebrew and Greek text, the same text the ledger prints. A use is counted once each time the tagging marks a word with this key.

Spellings are counted as the Greek text spells them, with the sentence's own punctuation taken off the word first, so a form that ends a clause is not counted as a second spelling.

The family is read from the lexicon by the stem the two words share, with the accents off, and a person or a place named on the stem is left out.

Hebrew and Greek text, word tagging and grammar: STEP Bible (www.STEPBible.org), Tyndale House, CC BY 4.0. Their grammar codes are written out in English here and shown as tagged beside each one.

Meaning and senses: STEP Bible TBESG (Tyndale House, CC BY 4.0), the Brief lexicon based on Abbott-Smith (1922).

Dictionary key: Strong's Exhaustive Concordance of the Bible (1890, public domain). English verse text: Berean Standard Bible (public domain, 2023).

Revised 2026-09-05. Every cited work, the sources registry →