Words ending with p:
7 letter words ending in p: * scallop * harelip * airdrop * trollop * bellhop * gumdrop
asleepbishopburlapdollopencamphiccupicecapmakeupmarkupmishaprecouprevampscrimpshrimpturnipwallopunsnapburlapbarhopbishopcarhopentrapdollopgallophookuphanguplinkuplockupmakeupmarkupmishappileupreshiprevampscrimpshrimpteacupwallop
Partnership
blimpchampchimpchirpclampchompclumpcrampcreepcrimpfrumpgrumpplumpprimppolyprecapskimpsloopsleepslurpstampstripstompstumpslumpswamptramptrumpuncap
Some four letter words beginning with P and ending with S:PadsPalsPansPapsParsPassPatsPawsPaysPeasPecsPegsPensPepsPetsPewsPicsPiesPigsPinsPipsPitsPlusPodsPolsPomsPopsPotsProsPubsPudsPugsPunsPupsPuts
zapp
peace, piece
Keep and kelp are four letter words starting with K and ending with P.
Pop, nap, sap, map
papaw, pilaw, pshaw
Such words include: harp hasp heap help hemp hoop hump
There's only 1! - "PLUMB"