Probably of foreign derivation; hyssop -- hyssop.
H231. ezob
אֵזוֺב noun masculine1 Kings 5:13 hyssop (Mishna אזוב, Aramaic , Arabic Frey., Ethiopic ᵐ5 ὕσσωπος, herb of purging qualities, but perhaps not precise botanical term, see Di Leviticus 14:6 f; see also Löw93) **probably a kind of wild marjoram (origanum Muru) PostHast. DB Hyssop. — ׳א absolute Exodus 12:22 4t.; אֵזֹב Leviticus 14:4 4t.; — hyssop, little plant (contracted אֶרֶז cedar) 1 Kings 5:13, ׳הָא בַּקִּיר יֹצֵא אֲשֶׁר; Exodus 12:22 (J) א ׳אֲגֻדַּת a bunch of h. for sprinkling blood on doorposts; without אגדת, used in cleansing from leprosy Leviticus 14:4, 6, 49, 51, 52; burnt with red heifer Numbers 19:6; used in cleansing with ashes of red heifer 19:18 (all P); compare Psalm 51:9 בְּא ׳תְּחַטְּאֵנִי וְאֶטְהָ֑ר.
אַזְכָּרָה see זכר.