seismograph/ʹsiezməgrahf, -graf/ noun

• parsimony
• parsley
• parsnip
• parson
• parsonage
• parson's nose
• part
• partake
• part and parcel
• parterre
• part-exchange
• parthenogenesis
• Parthian
• Parthian shot
• partial
• partial derivative
• partial differential equation
• partial differentiation
• partiality
• partial pressure
• partible
• participate
• participle
• particle
• particle-beam weapon