Or (shortened) gdullah {ghed-ool-law'}; or (less accurately) gduwllah {ghed-ool-law'}; feminine of gadowl; greatness; (concretely) mighty acts -- dignity, great things(-ness), majesty.
see HEBREW gadowl
H1420. gedullah
גְּדוּלָּה noun feminine greatness — 2 Samuel 7:21 3t.; גְּדֻלָּה 1 Chronicles 29:11; construct גְּדֻלַּת Esther 10:2; suffix גְּדוּלָּתוֺ 1:4; גְּדֻלָּתוֺ Psalm 145:3; גְּדְלָּתִי 71:21; גְדֻלָּו֯תְךָ 145:6; plural intensive גְּדֻלּוֺת1 Chronicles 17:19, 21; — chiefly late Hebrew
a. of Psalmist Psalm 71:21; Mordecai Esther 6:3; 10:2, king 1:4;
b. of God's greatness, as an attribute 1 Chronicles 29:11; Psalm 145:3; 145:6, or of his acts 2 Samuel 7:21 (compare Dr) 7:23 = 1 Chronicles 17:19 (twice in verse); 17:21.
הַגְּדוֺלִים
proper name, masculine father of Zabdiel Nehemiah 11:14 (RV & so most; but ᵐ5 RVm and others the great).