Related Clues:

• Eternity
• Exceedingly, with 'so'
• Endlessly
• In perpetuity
• It's before after
• 'If I ___ ...'
• Diamond shape
• Lasting starter?
• It's often before after
• Word with more and lasting
• See 43-Down
• Word before after?
• Word with when or what
• "... lived happily ___ after"
• Lasting introduction