/ ˈpɑːsli; NAmE ˈpɑːrsli/ noun
[ U ] a plant with curly green leaves that are used in cooking as a herb and to decorate food :
fish with parsley sauce
—see also cow parsley
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WORD ORIGIN
Old English petersilie , via late Latin based on Greek petroselinon , from petra rock + selinon parsley, influenced in Middle English by Old French peresil , of the same origin.