infest /in-festˈ/

1. To swarm over, cover or fill, in a troublesome, unpleasant or harmful way
2. To invade and live on or in as a parasite
3. To disturb or harass

1. Hostile
2. Troublesome

infestāˈtion noun

1. Attack, or the condition of being attacked, esp by parasites
2. Molestation (obsolete)

• first joint
• first ladies
• first lady
• first lieutenant
• first lieutenants
• first light
• firstling
• firstlings
• firstly
• first meridian
• First Minister
• first name
• first names
• first night
• first-nighter
• first-nighters
• first nights
• first offender
• first offenders
• first past the post
• first-past-the-post
• first people
• first person
• first-person
• first point of Aries