From qatar; a fumigation -- (sweet) incense, perfume.
see HEBREW qatar
H7004. qetoreth
קְטֹ֫רֶת60 noun feminine smoke, odour of (burning) sacrifice, incense; — ׳ק absolute Exodus 30:1 +; construct 25:6 +; suffix קְטָרְתִּי Ezekiel 16:18; 23:41; —
1 sweet smoke of sacrifice, "" מנחה Isaiah 1:13; Psalm 141:2, ׳קְ אֵילִים 66:15, ק ׳לְהַקְטִיר 1 Samuel 2:28 (?).
2 incense, ׳ק (ה)סמים Exodus 25:6; 30:7; 31:11; 40:27 9t.; ׳ק תמיד 30:8, ׳ק רֹקַח 30:35, ׳הק alone 30:37; Leviticus 16:13; Numbers 16:35; 17:12; so ׳ק 16:7, 17, 18; 17:5; 17:11; 2 Chronicles 29:7, ׳ק זָרָה Exodus 30:9, הק ׳ענן Leviticus 16:13; Ezekiel 8:11, also of זרה אשׁ Leviticus 10:1 (illegal worship); in offering of the princes Numbers 7:14 + 11t. 7, compare 7:86. Altar of incense is ק מקטר ׳מזבח Exodus 30:1, ׳מ ׳הק זהב 1 Chronicles 28:18, ׳מ לק ׳הזהב Exodus 40:5, ׳מ ׳ק הסמים Leviticus 4:7, ׳מ ׳הק Exodus 30:27 6t.
3 perfume, "" שֶׁמֶן Ezekiel 16:18; 23:41; Proverbs 27:9.