PAM
PAMPA
PAMPAS
PAMPASES
PAMPEAN
PAMPEANS
PAMPELMOOSE
PAMPELMOOSES
PAMPELMOUSE
PAMPELMOUSES
PAMPER
PAMPERED
PAMPEREDNESS
PAMPEREDNESSES
PAMPERER
PAMPERERS
PAMPERING
PAMPERO
PAMPEROS
PAMPERS
PAMPHLET
PAMPHLETEER
PAMPHLETEERED
PAMPHLETEERING
PAMPHLETEERINGS
PAMPHLETEERS
PAMPHLETS
PAMPHREY
PAMPHREYS
PAMPOEN
PAMPOENS
PAMPOOTIE
PAMPOOTIES
PAMS

34 words start with PAM.