milfoil /milˈfoil/

1. Yarrow, or any other species of Achillea
2. Extended to other plants with finely divided leaves, such as water milfoil (genus Myriophyllum, family Haloragidaceae)

• persistency
• persistent
• persistent cruelty
• persistently
• persistents
• persistent vegetative state
• persisting
• persistingly
• persistive
• persists
• person
• persona
• personable
• personableness
• personablenesses
• personae
• personage
• personages
• persona grata
• personal
• personal ad
• personal ads
• personal allowance
• personal assistant
• personal assistants