Some positive words that begin with the letter P:
Pleasurable?
Plentiful, populous, prevalent
Some examples of 3-syllable words beginning with "p" are: potential, picturesque, and peculiar.
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Passion
Some words beginning with P and ending with K:PackPaddockPadlockPaintworkPaperbackPaperworkParkPartookPassbookPassmarkPatchworkPaybackPaycheckPeacockPeakPebrookPeckPeekPerkPickPickabackPickwickPieceworkPiggybackPillockPinkPinprickPipeworkPipsqueakPitchforkPlacekickPlanckPlankPlasterworkPlaybackPlaybookPlonkPluckPlunkPockPocketbookPockmarkPollackPollockPoppycockPorkPostmarkPothookPotluckPrankPreshrankPreshrinkPreshrunkPresoakPrickPuckPullbackPunk
pumpkin
Partnership
Some words beginning with the letters POO:PoochPoodlePoofPoohPoolPoolroomPoolsidePoorPoorhousePoorlyPoos
pearl petal pedal
Some words beginning with P and ending with K:PackPaddockPadlockPaintworkPaperbackPaperworkParkPartookPassbookPassmarkPatchworkPaybackPaycheckPeacockPeakPebrookPeckPeekPerkPickPickabackPickwickPieceworkPiggybackPillockPinkPinprickPipeworkPipsqueakPitchforkPlacekickPlanckPlankPlasterworkPlaybackPlaybookPlonkPluckPlunkPockPocketbookPockmarkPollackPollockPoppycockPorkPostmarkPothookPotluckPrankPreshrankPreshrinkPreshrunkPresoakPrickPuckPullbackPunk
Words beginning with the letter p that describe a person:patheticpessimisticpetiteperfectpettyphilanthropicpitifulpleasantplumppoisedpolitepompouspowerfulpragmaticpreciouspretentiousprettyprivateproductiveprofessionalproudpsychoticpurposefulpushy
peace, piece