engulf or ingulf /in-gulfˈ/, also (obsolete) engulph or ingulph

1. To swallow up completely
2. To cause to be swallowed up
3. To overwhelm

engulfˈment noun

• luncheon meats
• luncheons
• luncheon voucher
• luncheon vouchers
• luncher
• lunchers
• lunches
• lunch hour
• lunch hours
• lunching
• lunch-table
• lunch-tables
• lunchtime
• lunchtimes
• lunch voucher
• lune
• lunes
• lunette
• lunettes
• lung
• lung-book
• lung-books
• lunge
• lunged
• lungeing