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)

• waysides
• ways of life
• way station
• way stations
• way to go
• way traffic
• way train
• way trains
• wayward
• way warden
• way wardens
• waywardly
• waywardness
• waywardnesses
• waywiser
• waywisers
• waywode
• waywodes
• wayworn
• wayzgoose
• wayzgooses
• waz
• waza-ari
• wazir
• wazirs