Or (shorter) req {rake}; from ruwq; empty; figuratively, worthless -- emptied(-ty), vain (fellow, man).
see HEBREW ruwq
H7386. req
[רֵיק], רֵק adjective empty, vain — masculine absolute רֵק Genesis 37:24 2t.; feminine דֵקָה feminine דֵקָה Ezekiel 24:11; Isaiah 29:8; masculine plural רֵ(י)קִים Judges 7:16 +; feminine plural רֵקוֺת Genesis 41:27; —
1 empty, of vessels 2 Kings 4:3; Judges 7:16; Ezekiel 24:11 +? Jeremiah 14:3 (רֵיקִים for דֵיקָם), 51:34 (רֵיק for רִיק); of pit Genesis 37:24 (J), lap Nehemiah 5:13, ears of grain Genesis 41:27 (E; דֵּקּוֺת 41:6; 41:7; 41:23; 41:24); נַפְשׁוֺ רֵקָה Isaiah 29:8 (compare 32:6 √ 1).
2 empty, idle, worthless, ethically; ריקים אנשׁים worthless fellows Judges 9:4; 11:3; 2 Chronicles 13:7, so הָרֵקִים alone(as substantive) 2 Samuel 6:20; רֵיקִים מְרַדֵּף Proverbs 12:11 AV RV of persons; < vain, unprofitable things, 28:19 (see Toy); ר ׳דָּבָר מִן Deuteronomy 32:47 (D) a thing too empty (of significance) for you; + (probably) Psalm 4:3 (רֵיק for רִיק ᵑ0) love an empty thing ("" כזב), of abortive course of action.