From kata and lambano; to take eagerly, i.e. Seize, possess, etc. (literally or figuratively) -- apprehend, attain, come upon, comprehend, find, obtain, perceive, (over-)take.
see GREEK kata
see GREEK lambano
1. to lay hold of so as to make one's own, to obtain, attain to: with the accusative of the thing; the prize of victory, 1 Corinthians 9:24; Philippians 3:12f; τήν δικαιοσύνην, Romans 9:30; equivalent to to make one's own, to take into oneself, appropriate: ἡ σκοτία αὐτό (i. e. τό φῶς) οὐ κατέλαβεν, John 1:5.
2. to seize upon, take possession of (Latinoccupare);
a. of evils overtaking one (so in Greek writings from Homer down): τινα σκοτία, John 12:35; (so physically, John 6:17 Tdf.); of the last day overtaking the wicked with destruction, 1 Thessalonians 5:4; of a demon about to torment one, Mark 9:18.
b. in a good sense, of Christ by his holy power and influence laying hold of the human mind and will, in order to prompt and govern it, Philippians 3:12.
3. to detect, catch: τινα ἐν τίνι, in passive John 8:3 (WH ἐπί τίνι); with a participle indicating the crime, John 8:4.
4. to lay hold of with the mind; to understand, perceive, learn, comprehend (Plato, Phaedr., p. 250d.; Axioch., p. 370a.; Polybius 8, 4, 6; Philo, vita contempl. § 10; Dionysius Halicarnassus, Antiquities 5, 46); middle (Dionysius Halicarnassus, Antiquities 2, 66; (cf. Winer's Grammar, 253 (238))), followed by ὅτι, Acts 4:13; Acts 10:34; followed by the accusative with an infinitive, Acts 25:25; followed by indirect discourse, Ephesians 3:18.