productivity (n.)

• abundance
• amperage
• amplitude
• authority
• beef
• bountifulness
• charge
• charisma
• clout
• cogency
• compulsion
• copiousness
• creativeness
• creativity
• diffuseness
• diffusion
• dint
• drive
• duress
• effect
• effectiveness
• effectuality
• effusion
• effusiveness
• energy
• extravagance
• exuberance
• fecundity
• fertility
• fluency
• force
• forcefulness
• fruitfulness
• generousness
• gush
• influence
• ingenuity
• invention
• inventiveness
• logorrhea
• lushness
• luxuriance
• mana
• might
• mightiness
• moxie
• originality
• overflow
• pizzazz
• plenteousness
• plentifulness
• pleonasm
• poop
• potence
• potency
• potentiality
• power
• powerfulness
• pregnancy
• prepotency
• prodigality
• productiveness
• profuseness
• profusion
• prolificacy
• puissance
• pull
• punch
• push
• rankness
• redundancy
• reiteration
• repetitiveness
• richness
• sinew
• steam
• strength
• superabundance
• superfluity
• superiority
• superpower
• talkativeness
• tautology
• teemingness
• tirade
• validity
• vehemence
• vigor
• vim
• virility
• virtue
• virulence
• vitality
• wattage
• weight