Lexical Definition

‎חָקַר‎ châqar (khaw-kar') to search H:V
a primitive root

find out, (make) search (out), seek (out), sound, try.

1) to search, search for, search out, examine, investigate
1a) (Qal)
1a1) to search (for)
1a2) to search through, explore
1a3) to examine thoroughly
1b) (Niphal)
1b1) to be searched out, be found out, be ascertained, be examined
1c) (Piel) to search out, seek out

See Greek: ἀνακρίνω · δοκιμάζω · ἐκζητέω · ἐκλείπω · ἐλέγχω · ἐρευνάω · ἐρευνάω · ἐρωτάω · καταγινώσκω

Usage: 26 forms in 27 verses
Form Translated As     In Verse(s)
תַּחְקְר֥וּן you searched for Job.32.11
נֶחְקַ֖ר it was ascertained 1Kgs.7.472Chr.4.18
לַחְקֹ֨ר to explore 1Chr.19.3
לַחְקֹ֥ר to examine Prov.23.30
יַחְקֹֽרוּ they will make a search Ezek.39.14
יַחְקֹ֣ר he will examine Job.13.9
יַחְקְרֶֽנּוּ he examines thoroughly him Prov.28.11
יַֽחֲקָר will he search out Ps.44.21
יֵֽחָקֵ֑ר it will be searched Jer.46.23
חוֹקֵ֑ר searching for Job.28.3
חֹקֵ֥ר searching Jer.17.10
חָקְרֵ֣נִי examine me Ps.139.23
חִקְר֣וּ explore Judg.18.2
חֲקֹ֣ר to search out Prov.25.2
חֲקָרָֽהּ he examined it Job.28.27
חֲקַרְנ֥וּהָ we have examined it Job.5.27
חֲק֤וֹר to explore 2Sam.10.3
חֲ֝קַרְתַּ֗נִי you have examined me Ps.139.1
וּלְחָקְרָ֔הּ and to explore it Judg.18.2
וַחֲקָרֽוֹ and he will examine him Prov.18.17
וְיֵחָקְר֥וּ so they may be explored Jer.31.37
וְחָקַרְתָּ֧ and you will search Deut.13.14
וְחִקֵּ֔ר and he searched out Eccl.12.9
וְֽנַחְקֹ֔רָה and let us examine Lam.3.40
אֶחְקֹ֣ר I will sound out 1Sam.20.12
אֶחְקְרֵֽהוּ I investigated it Job.29.16

Brown-Driver-Briggs

[‎חָקַר‎] verb search (Late Hebrew id., Niph`al passive, Aramaic ‎חֲקַר‎) —

Qal Perfect 3 masculine singular suffix ‎וַחֲקָרוֺ‎ consecutive Prov 18:17 ‎חֲקָרָהּ‎ Job 28:27 ‎וְחָֽקַרְתָּ֫‎ Deut 13:15* etc.; Imperfect ‎יַחְקֹר‎ Job 13:19 ‎יַחֲקָרֿ‎ Ps 44:22* ‎יַחְקְרֶנּוּ‎ Prov 28:11 ‎אֶחְקֹר‎ 1Sam 20:12 ‎תַּחְקְרוּן‎ Job 32:11 ‎נַחְקֹ֑רָה‎ Lam 3:40 etc.; Imperative ‎חָקְרֵ֫נִי‎ Ps 139:23 ‎חִקְרוּ‎ Judg 18:2 Infinitive ‎חֲקֹר‎ 2Sam 10:3 + 2 t.; ‎לַחְקוֺר‎ Prov 23:30 ‎לְחָקְרָהּ‎ Judg 18:2

1. search (for), followed by accusative Prov 23:30; Job 32:11 absolute ‎וְדָרַשְׁתָּ֫ וְחָקַרְתָּ֫‎ ‎וְשָׁאַלְתָּ֫ הֵיטֵיב‎ Deut 13:15* literal Ezek 39:14 (i.e. for bones unburied).

2. a. search through, explore, literally, object ‎הארץ‎ Judg 18:2 (|| ‎רַגֵּל‎) vJudg 18:2, 1Chr 19:3 (|| id.); city ‎העיר‎ 2Sam 10:3 (|| id.), of mining Job 28:3 search out a subject or matter Job 5:27; Job 28:27; Prov 25:2; Ps 44:22*.
b. search a man, find out his sentiments (AV sound him) 1Sam 20:12.
c. of ‎׳‎‎י‎ searching man, with accusative Ps 139:1 (|| ‎ידע‎), vPs 139:23 (|| id.) Job 13:9, compare Jer 17:10 (object ‎לֵב‎).
d. of examining thoroughly, so as to expose weakness in a case Job 29:16; Prov 18:17, compare Prov 28:11 so of self-examination ‎דרכים‎ ‎׳‎‎ח‎ Lam 3:40 (|| ‎חפשׂ‎). Niph`al Perfect ‎נֶחְקַר‎ 1Kgs 7:47; 2Chr 4:18 Imperfect ‎יֵחָקֵר‎ Jer 46:23 ‎יֵחָֽקְרוּ‎ Jer 31:37 be searched out, found out, ascertained, 1Kgs 7:47; 2Chr 4:18 (weight of the bronze used in temple utensils), of forest Jer 46:23 searched out, Jer 31:37 subject ‎מוסדיֿ‎ ‎ארץ‎ Pi`el Perfect ‎חִקֵּר‎ Eccl 12:9 he sought out many proverbs (‎מְשָׁלִים‎; || ‎אִזֵּן‎).

Brown-Driver-Briggs References

Book Refs
Deuteronomy 13:15*
Judges 18:2
1 Samuel 20:12
2 Samuel 10:3
1 Kings 7:47
1 Chronicles 19:3
2 Chronicles 4:18
Job 5:27 · 13:9 · 13:19 · 28:3 · 28:27 · 29:16 · 32:11
Psalms 44:22* · 139:1 · 139:23
Proverbs 18:17 · 23:30 · 25:2 · 28:11
Ecclesiastes 12:9
Jeremiah 17:10 · 31:37 · 46:23
Lamentations 3:40
Ezekiel 39:14