καταριθμέωkatarithméō

to number or count among: followed by ἐν, Acts 1:17.

Greek (New Testament) · G2674

Same root

κατάkatá · G2596(prepositionally) down (in place or time), in varied relations (according to the case (genitive, dative or accusative) with which it is joined)
ἀριθμέωarithméō · G705to enumerate or count

Where it appears

Appears 1 times in the Bible.

Acts 1:17 Judas was one of us and shared in the ministry with us.”

Source: G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922), public domain.