gaffe or (rare) gaff /gaf/

A blunder

• peptonised
• peptonises
• peptonising
• peptonization
• peptonizations
• peptonize
• peptonized
• peptonizes
• peptonizing
• Pepysian
• per
• per-
• per.
• peracute
• peradventure
• peradventures
• peraeon
• peraeopod
• perai
• perais
• perambulate
• perambulated
• perambulates
• perambulating
• perambulation