fauxbourdon /fōˈbər-don or fō-boor-dɔ̃ˈ/ same as faburden

• pities
• pitiful
• protogynies
• protogynous
• protogyny
• proto-historic
• proto-history
• protohuman
• protohumans
• Proto-Indo-European
• protolanguage
• protolanguages
• protolithic
• protomartyr
• protomartyrs
• protomorphic
• proton
• proton beam
• proton beams
• protonema
• protonemal
• protonemata
• protonematal
• protonic
• proton microscope