Related Clues:

• First word of many fairy tales
• ''Going ___, going ...''
• At a previous time
• "Measure twice, cut ---"
• Start of many a story
• At a prior time
• In time past
• Not too often
• Without repeat
• In days past
• Enough, in some cases
• One time
• It's enough, for some
• It may never be enough
• ___-over (cursory glance)