From reyq; emptily; figuratively (objective) ineffectually, (subjective) undeservedly -- without cause, empty, in vain, void.
see HEBREW reyq
H7387. reqam
רֵיקָם adverb emptily, vainly; —
1 in empty condition, empty = with empty hands; with verb of sending Genesis 31:42 (E), Deuteronomy 15:13; 1 Samuel 6:3; Job 22:9; of going forth Exodus 3:21, returning Ruth 1:21; 3:17; = without an offering, ד פָנַי יֵרָאוּ ׳לֹא Exodus 23:15 (E) = 34:20 (J), more fully Deuteronomy 16:16 (compare [פָנֶה] II.
2 ראה
Niph`al 1 b).
2 in vain, without effect : with שׁוּב 2 Samuel 1:22 (poem), Isaiah 55:11; Jeremiah 14:3 (but see רֵיק
1), Jeremiah 50:9; probably also ר ׳צוֺרֲרִי Psalm 7:5 those who were my adversaries in vain (without success); ר ׳הַבּוֺגְדִים 25:3 that deal treacherously in vain <in both most without cause).