gaffe or (rare) gaff /gaf/

A blunder

• pectization
• pectizations
• pectize
• pectized
• pectizes
• pectizing
• pectolite
• pectolites
• pectoral
• pectoral cross
• pectoral crosses
• pectoral fins
• pectoral girdle
• pectoral girdles
• pectorally
• pectorals
• pectoral sandpiper
• pectoral sandpipers
• pectoral theology
• pectoriloquies
• pectoriloquy
• pectose
• pectoses
• peculate
• peculated