pullulate /pulˈū-lāt/

1. To sprout
2. To sprout or breed abundantly
3. To teem
4. To increase rapidly

• yearlings
• yearlong
• yearly
• yearn
• yearned
• yearner
• yearners
• yearning
• yearningly
• yearnings
• yearns
• year of grace
• year-on-year
• year-round
• years
• year's mind
• years of discretion
• yeas
• yea-sayer
• yea-sayers
• yeast
• yeasted
• yeastier
• yeastiest
• yeastiness