straitlaced or straightlacedadj

• perfoliate
• perforate
• perforce
• perform
• performance
• performance art
• performative
• performing arts
• perfume
• perfumery
• perfunctory
• perfuse
• pergola
• perhaps
• peri
• peri-
• perianth
• periapt
• pericardia
• pericarditis
• pericardium
• pericarp
• perichondrium
• periclase
• periclinal