Prolongation

n.	1.
	1.	The act of lengthening in space or in time; extension; protraction.
	2.	That which forms an additional length.

Noun	1.	prolongation - the act of prolonging something; "there was an indefinite prolongation of the peace talks" Synonyms: lengthening, perpetuation, protraction
	2.	prolongation - amount or degree or range to which something extends; "the wire has an extension of 50 feet" Synonyms: lengthiness, extension
	3.	prolongation - the consequence of being lengthened in duration Synonyms: protraction, lengthiness, continuation

PROLONGATION. Time added to the duration of something.
     2. When the time is lengthened during which a party is to perform a contract, the sureties of such a party are in general discharged, unless the sureties consent to such prolongation. See Giving time.
     3. In the civil law the prolongation of time to the principal did not discharge the surety. Dig. 2, 14, 27; Id. 12, 1, 40.

adjournal, adjournment, coming after, consecution, consecutiveness, continualness, continuance, continuation, continuity, deferment, deferral, descent, elongation, endurance, extension, extension of time, following, lengthening, line, lineage, lingering, logical sequence, maintenance, order, order of succession, perpetuation, perseverance, persistence, posteriority, postponement, postposition, procession, procrastination, production, progress, progression, prorogation, protraction, pursuance, putting-off, repetition, rotation, run, sequence, series, staying power, straight course, strain, stretch, stretching, stringing out, subjunction, succession, successiveness, suffixation, sustained action, sustenance, tabling, tension, uninterrupted course, unremittingness, way