Or (shortened) zroao {zer-o'-ah}; and (feminine) zrowpah {zer-o-aw'}; or zrowah {zer-o-aw'}; from zara'; the arm (as stretched out), or (of animals) the foreleg; figuratively, force -- arm, + help, mighty, power, shoulder, strength.
see HEBREW zara'
H2220. zeroa
זְרֹעַ זְרוֺעַ, noun feminineExodus 6:6 and (rare) masculineIsaiah 51:5, compare below arm, shoulder, strength (Late Hebrew id.; Assyrian (Tel el Amarna102, 1. 12, etc.) zurû, compare JastrJBL xi, 1892, 123; Arabic ; Aramaic דְּרָעָא, ; Ethiopic ) — absolute זְרוֺעַ Exodus 6:6 +, זְרֹעַ Deuteronomy 7:19 +; construct זְרוֺעַ Psalm 10:15 +, זְרֹעַ 89:11 +; suffix זְרוֺעִי Jeremiah 27:5; Psalm 89:2, זְרֹעִי Isaiah 51:5; 63:5; זְרוֺעֲךָ Psalm 71:18 +, זְרֹעֲךָ 1 Samuel 3:31 +, etc.; plural זְרֹעִים Daniel 11:31; construct זְרֹעֵי Genesis 49:24; suffix זְרֹעַי Isaiah 51:5, זְרֹעָיו 2 Kings 9:24; elsewhere feminine form, construct זְרוֺעוֺת Psalm 37:17, זְרֹעוֺת Job 22:9 6t., זְרֹעֹת Deuteronomy 33:27; suffix זְרוֺעֹתָ֑י Psalm 18:35, זְרֹעֹתָ֑י 2 Samuel 22:35, etc. (In absolute and construct singular more often plene, in plural and with suffix more often defect. In three instances where ׳ז is masculine it means a political or military force Daniel 11:15, 22, 31). —
1 arm,
a. literally, of a man Judges 15:14; 16:12; 2 Samuel 1:10; Isaiah 9:19; 17:5 (probably accusative instrumental), Deuteronomy 33:20; Zechariah 11:17 (twice in verse); Cant 8:6; Daniel 10:6; Ezekiel 13:30 (strike out Co); ׳ז כֹּחוֺ Isaiah 44:12 (of a smith, forging); ׳ז חֲשׂוּפָה Ezekiel 4:7 (of prophet); in figure of ׳י teaching Ephraim to walk Hosea 11:3; יָדָיו זְרֹעֵי Genesis 49:24 arms of his hands, i.e. arms that by their strength enable him (Joseph) to draw the bow; זְרֹעָיו בֵּין אֶתיְֿהוֺרָם וַיַּךְ 2 Kings 9:24, i.e. his arms seen from behind, his shoulders.
b. arm as seat of (human) strength Psalm 18:35 = 2 Samuel 22:35; ׳ז לֹאעֹז Job 26:2, הַזּ ׳כּוֺחַ Daniel 11:6 compare 11:6; ׳ז עֹז לֹא Job 26:2; ז ׳חִוַּקְתִּי Hosea 7:15 compare Ezekiel 30:24-25, also with שׁבר Psalm 10:15; 37:17; Jeremiah 48:25 ("" קֶרֶן), Ezekiel 30:21-22, 24 compare 30:25; ׳ז תִּשָּׁבֵר רָמָה Job 38:15. — On Malachi 2:3 compare VB. Especially
c. Yahweh's arm as instrument of deliverance and judgment (often Deuteronomy, Jeremiah, Isa2, Psalms): — ׳ז נְטוּיָה Deuteronomy 4:34; 5:15; 26:8; Ezekiel 20:33-34, Psalm 136:12, compare Deuteronomy 7:19; 11:2; 1 Kings 8:42 2 Chronicles 6:32 (all "" חֲזָקָה יָד), Deuteronomy 9:29; 2 Kings 17:36; (of creation) Jeremiah 27:5; 32:17 (all "" גָּדוֺל כֹּחַ); ׳בִּז נְטוּיָה Exodus 6:6 (P, or D's revision; no ""); ׳זְ חֲזָקָה Jeremiah 21:5 ("" נְטוּיָה יָד); זרועך גְּדֹל Exodus 15:16 (song), ז ׳גֹּדֶל Psalm 79:11; תְאַמְּצֶנּוּ זְרוֺעִי 89:22 ("" יָדִי); ׳בִּזְ 77:16; ׳ז 44:4 ("" יְמִינְךָ), ׳ז קָדְשׁוֺ 98:1 ("" יְמִינוֺ), compare Isaiah 52:10; ׳ז עֻוָּךָ Psalm 89:11 compare Isaiah 62:8 ("" יְמִינוֺ); י זְרוֺעַ ׳לִבְּשִׁיעֹֿז 51:9; עִםגְּֿבוּרָ֑ה ז ׳לְךָ Psalm 89:14; ׳ז תִּפְאַרְתּוֺ Isaiah 63:12; as support of weak 40:11 (figurative of shepherd), compare עוֺלָם זְרֹעֹת Deuteronomy 33:27; יַרְאֶה זְרוֺעוֺ נַחַת Isaiah 30:30 (of lightning stroke, "" קולו הוֺד השׁמיע of thunder); also לָךְ כָּאֵל אִםוְֿרוֺעַ Job 40:9.Hence,
2 arm, as symbol of strength:
a. human 1 Samuel 2:31 (twice in verse) (ᵐ5 read זַרְעֲךָ and זֶרַע, but see Klo Dr), Ezekiel 22:6; 31:17; זְרוֺעתֶיהָ וַתְּאַמֵּץ Proverbs 31:17; ׳ז בָּשָׂר2 Chronicles 32:8; זְרֹעוֺ בָּשָׂר שָׁם Jeremiah 17:5 ("" בָּאָדָם יִבְטַח); compare Psalm 44:4 ("" חַרְבָּם); זרוע אישׁ Job 22:8; יְתֹמִים זְרֹעוֺת 22:9 (i.e. strength, resources); לִבְּנֵילֿוֺט זרוע הָיוּ Psalm 83:9; ׳ז רַבִּים Job 35:9; גְּדוֺלָה זְרֹעַ Ezekiel 17:9 (for pulling up a tree, in metaphor).
b. = divine strength Psalm 71:18 ("" גְּבוּרָה), לוֺ משְׁלָה זְרֹעוֺ Isaiah 40:10 ("" חָזָק); יִשְׁמֹּ֑טוּ עַמִּים זְרֹעַי 51:5 [Str thinks masculine to avoid verbal ending נָה, compare 49:11]; and help 33:2 ("" יְשׁוּעָה) compare 59:16; 63:5; see also 53:1.
3 Plural forces, political and military, with יִעֲמֹ֑דוּ Daniel 11:15, 31; 11:22 (see Bev).
4 Shoulder of animal sacrificed, belonging to priest Numbers 6:19 (P) Deuteronomy 18:3.
דרע (√of following; Biblical Hebrew II. זרע, זְרוֺעַ).