prolongation (n.)

• adjournment
• continuance
• continuation
• continuity
• deferment
• deferral
• descent
• elongation
• endurance
• extension
• following
• lengthening
• line
• lineage
• lingering
• maintenance
• order
• perpetuation
• perseverance
• persistence
• posteriority
• postponement
• postposition
• procession
• procrastination
• production
• progress
• progression
• prorogation
• protraction
• pursuance
• repetition
• rotation
• run
• sequence
• series
• strain
• stretch
• stretching
• subjunction
• succession
• successiveness
• suffixation
• sustenance
• tabling
• tension
• way