gaffe or (rare) gaff /gaf/

A blunder

• multiramified
• multirole
• multiscience
• multisciences
• multiscreen
• multiseptate
• multiserial
• multiseriate
• multiskill
• pyrenocarp
• pyrenocarps
• pyrenoid
• pyrenoids
• Pyrenomycetes
• pyrenomycetous
• pyres
• pyrethrin
• pyrethrins
• pyrethroid
• pyrethroids
• Pyrethrum
• Pyrethrums
• pyretic
• pyretologies
• pyretology