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)

• caterings
• caterpillar
• caterpillars
• caters
• caterwaul
• caterwauled
• caterwauling
• caterwaulings
• caterwauls
• cates
• cat-eyed
• cat-fight
• cat-fights
• catfish
• catfishes
• catflap
• catgut
• catguts
• cath.
• Cath.
• Cathaian
• cat-hammed
• Cathar
• Cathari
• catharise