There are too many seven letter words beginning with P and ending with S.
To name a few:
For more, please refer to the link listed below.
A seven letter word that starts with D and ends with T: decrypt
A seven (7) letter word that starts with M and ends with O: memento
descentdecideddiamonddiscarddiscorddividedelevateerasuregaininggrowingglowinghellishlateralliterallogicalmodicumoreganoreentertangenttrident
vintagevillagevoltageviolateviolentvariousvictimsvitaminvesselsvibratevittlesvariantvillainvilleinvictoryvistaedviscousventurevulturevagrantvehiclevelvetyvisceravarietyvolcanovisiblevarmintviceroyvinegar
Chalice
A seven letter word that starts with D and ends with T: decrypt
A seven (7) letter word that starts with M and ends with O: memento
Duchess is a seven letter word.
descentdecideddiamonddiscarddiscorddividedelevateerasuregaininggrowingglowinghellishlateralliterallogicalmodicumoreganoreentertangenttrident
anxiety
andiron
malaria
cardiac
stomata
Cabomba
Alveoli.
rotator